a ruby laser emits an intense pulse of light that last a mear 10 nm. the light has a wavelength of 690nm, and each pulse has an energy of 500 mj: a) how many photons are emitted with each pulse? b) what is the rate of photon emission, in photons per second, during the 10ns that the laser is on?

Answers

Answer 1

Making a few assumptions like uniformity and flatness of the universe we have :

A. [tex](\frac{a}{a} )^{2} = \frac{8\pi gs+\pi }{3}[/tex]

B. [tex]\frac{a}{a} = - \frac{4\pi G}{3} (S+3P)+\frac{\pi }{3}[/tex]

where is 'a' is a scale factor which tells us how expanded the Universe is. And it's the first derivative gives the rate of expansion and its second derivative gives the acceleration of the universe.

So if G increases, due to the mass of neutrons. Then the acceleration would have a negative value which would mean slowing down.

All the above however does not consider dark energy, which would modify the equations. We still have to understand the nature of dark matter to be able to predict how much in the long run would gravity affect acceleration.

Learn more about Photon emission here:- https://brainly.com/question/17227537

#SPJ4


Related Questions

A 20 kg wooden crate is dragged 12 m across a rough level floor by a rope. The force of tension in the rope is 50 N at an angle of 25° above the horizontal and the crate is moving at a constant speed of 1.50 m/s. Find the magnitude of the normal force [N].

Answers

To solve this problem, we can use the equations of motion and Newton's second law of motion. The equation of motion for an object moving at constant speed is:

x = x0 + v0t + (1/2)at^2

where x is the final position, x0 is the initial position, v0 is the initial velocity, t is the time, and a is the acceleration.

In this case, the initial position is 0 m (since the crate starts at the beginning of the 12 m distance), the initial velocity is 0 m/s (since the crate starts at rest), and the time is 12 s (since the crate moves at a constant speed of 1.50 m/s).

We can use these values to solve for the acceleration:

12 m = (1/2)(a)(12 s)^2

a = 0.5 m/s^2

Now that we know the acceleration, we can use Newton's second law of motion to find the normal force:

F = ma

N = (20 kg)(0.5 m/s^2)

N = 10 N

This is the magnitude of the normal force on the crate. Note that this is the normal force exerted by the floor on the crate, not the force of tension in the rope. To find the force of tension in the rope, we would need to consider the angle of the rope and the direction of the force.

the three main classes of asteroids, based on similarities in their infrared reflectance spectra, are c, s, and m. how do the different types of meteorites match up to the main asteroid classes?

Answers

C-type asteroids correspond to carbonaceous chondrites. S-type asteroids are similar to the most common stony meteorites. M-type asteroids are similar to iron meteorites.

Asteroids are classified into three broad composition classes: C-, S-, and M-types.

The most common asteroids are C-type (chondrite). They are dark in appearance and are most likely made of clay and silicate rocks. They are among the solar system's oldest objects.

The S-types ("stony") are composed of silicates and nickel-iron.

M-types are metallic (nickel-iron). The composition of asteroids changes according to the distance from the Sun. After they formed and partially melted, some experienced high temperatures, with iron sinking to the centre and forcing basaltic (volcanic) lava to the surface.

To learn more about asteroids refer here

https://brainly.com/question/29777540

#SPJ4

) the intensity of solar radiation near the earth is 1.4 kw/m^2. what force is exerted by solar radiation impinging normally on a 5.0 m^2 perfectly reflecting panel of an artificial satellite orbiting the earth?

Answers

The force exerted by the solar radiation is Force = 4.665 × [tex]10^-^1^1[/tex] N

The intensity of the given solar radiation is [tex]1.4 kw/m^2[/tex] = 1.4× [tex]10^3[/tex] W/m²

Given area of the panel is [tex]5 m^2[/tex]

Speed of the sound is 3 × [tex]10^8[/tex] m/s

Thus Pt = Total solar radiation pressure

Pt = [tex]2\frac{L}{c}[/tex]

Pt  = [tex]2\frac{1.4 * 10^-^3}{3 * 10^8}[/tex]

which on further solving will give us :

Pt = 0.933 × [tex]10^-^1^1[/tex]

Total solar radiation pressure = 0.933 × [tex]10^-^1^1[/tex] Ws/m³

Force = Pressure * Area

Force = 0.933 × [tex]10^-^1^1[/tex] × 5

Force = 4.665 × [tex]10^-^1^1[/tex] N

The force exerted by the solar radiation is Force = 4.665 × [tex]10^-^1^1[/tex] N

To know more about force you may visit the link:

https://brainly.com/question/13191643

#SPJ4

why do waves decrease at fixed points

Answers

This is due to the fact that for waves to be conserved when they move from one area to another, the absolute wave duration must remain constant.

When a wave reaches a fixed point, what happens?

For instance, a wave comes back upside down when it hits a fixed end. A wave returns in the same direction it came when it hits a free end.

Why does a wave collapse or break?

According to research, waves break when their amplitude reaches a critical point at which a significant portion of their wave energy is converted into turbulent kinetic energy, much like a ball rolling down a hill. The right end is fastened and tightly secured. The wave returns as a downward-displaced pulse after reflecting off this fixed end. Inversion happens when a reflection hits a fixed end.

to know more about waves here:

brainly.com/question/3639648

#SPJ4

consider the properties you can deduce from the periodic table. what do you know about the noble gases? select all of models that represent noble gases.responses

Answers

Because of their electrical configurations, they have been given the more apt name, Group 18. Possibilities Both a C are really the isotopes since their outer layer is completed but they do not interact with anyone.

Noble gases: what are they?

Noble gases are all seven of the basic components that make up Division 18 of the chemical elements. The constituent elements include hydrogen, xenon, radon, atoms, mercury, radon, and oganesson (Og). Inert, flavorless, unscented, and nonflammable gases are known as noble gases.

What noble gas is gold?

This definition classifies copper, silver, and gold as noble metals. A superb metal is also one that is resistant to corrosion and oxidation.

To know more about noble gases visit:

brainly.com/question/11764545

#SPJ4

what is the smallest one-dimensional box in which you can confine an electron if you want to know for certain that the electron's speed is no more than 10 m/sm/s ?

Answers

An electron may be contained in a cage no smaller than 7 m in length.

An electron's composition.

It is possible for an electron to be free or linked to an atom. An electron is a negatively charged subatomic particle (not bound). There are three distinct types of particles in an atom: neutrons, reactors, and then an electrons that is attached to an electron.

What purposes serve electrons?

To create cross-platform desktop apps using HTML, CSS, and JavaScript, GitHub created the open source package called Electron. By fusing Node and Chromium, Electron achieves this. Apps may be bundled for Linux, Windows, and Mac using a single runtime that supports JavaScript.

To know more about Electrons visit:

https://brainly.com/question/1255220

#SPJ4

A bicyclist climbs a hill at a constant speed. She has to apply an average force of 92 newtons to ride at 1.4 meters per second. If the combined mass of the bicyclist and the bicycle is 68 kilograms, how much power does she supply to move at this rate up the hill?

Answers

The power supplied by the bycyclist of mass 68 kg is 128.8 W.

What is power?

Power can be calculated by multiplying the force of a body and it velocity.

To calculate the power she supply to move up the hill, we use the formula below.

Formula:

P = FV............ Equation 1

Where:

P = PowerF = ForceV = Velocity

From the question,

Given:

F = 92 NV = 1.4 m/s

Substitute these values into equation 1

P = 92×1.4P = 128.8 W

Hence the power supplied by the bycyclist is 128.8 W.

Learn more about power here: https://brainly.com/question/20137708

#SPJ1

The Moon does not crash into Earth because: its in Earth's gravitational field the net force on it is zero it is beyond the main pull of Earth's gravity its being pulled by the Sun as well as by Earth none of the above

Answers

It is freely falling but it has a high tangential velocity.

The correct answer is D.

Is the net force on the moon zero?

There cannot be zero net force acting on the Moon. There will be no circular orbit since there will be no net force acting on the Moon. The motion will be carried out by the Moon.

Why does the moon not have a gravitational pull?

The gravity at the Moon's surface is about 1/6th as strong as that at Earth, or 1.6 meters per second every second. The Moon's surface gravity is weaker because it has a smaller mass than Earth. The gravity at the Moon's surface is about 1/6th as strong as that at Earth, or 1.6 meters per second every second.

To know more about gravitation visit

https://brainly.com/question/13459640

#SPJ4

I understand that the question you are looking for is

The Moon does not crash into the Earth because:

(a) the net force on it is zero.

(b) it is beyond the main pull of the Earth's gravity.

(c) it is being pulled by the Sun as well as by the Earth.

(d) it is freely falling but it has a high tangential velocity.

A current flows through a circular coil of wire. How will the strength of the magnetic field change in the center of the coil if three turns of a radius three times smaller are made from this coil?

Answers

Answer:

bhai what is yhis? i dont understand

the maximum wavelength that an electromagnetic wave can have to simply eject electrons with no additional energy on the electron from a metal surface, is 485 nm. what is the work function w0 of this metal? express your answer in electron volts.

Answers

The work function of the metal is 4.1 ev

maximum wavelength, λ = 485 nm = 485 x 10^-9 m

The work function of the metal,

Wo = hc/[tex]\lamda[/tex]λ

where, h is the Plank's constant and c be the speed of light

h = 6.634 x 10^-34 Js

c = 3 x 10^8 m/s

Wo = hc/[tex]\lamda[/tex]λ

Wo = (6.634 x 10^-34*3 x 10^8)/485 x 10^-9

= 4.1 ev

Work function:

The least amount of energy needed for photons to simply expel from the metal's surface is considered to be the work function of the metal. The smallest amount of energy required to extract an electron from a metal is represented by the work function. The work function and ionization energy of metals are same. The surface's condition has a significant impact on how well a surface performs its purpose.

To learn more about work function visit: https://brainly.com/question/24180170

#SPJ4

Correctly label the components of the lungs. Lobar bronchi Middle lobe Superior lobe Inferior lobe Pulmonary arteries Pulmonary veins Hilum Reset Zoom Prex 7 of 50 Novt

Answers

circulation of blood between the heart and lungs, then to the heart.

Lungs.bronchi, or bronchial tubes.Bronchioles.an air sac (alveoli)

How should the lungs be arranged?

In the lung, the trachea splits into two main bronchi, which then branch into more tertiary and secondary bronchi and lastly into bronchioles.

The lungs are composed of what 5 parts?

The three lobes that make up the right lung are indeed the right upper lobe (RUL), right middle lobe (RML), & right lower lobe (RLL) (RLL).Left upper lobe (LUL) & left lower lobe (LLL) make up the left lung's two lobes (LLL)

To know more about lungs visit:

https://brainly.com/question/13210870

#SPJ4

The charge of the electron is -1.602x10-19 C. The charge of the proton is the same except positive. An electron and proton are separated by a distance. What is the distance, r; such that the electric force between them is 1.000 N? X l0l ?] m Hint: Ke = 8.99x109 N-m?/C2. Coefficient (green) Exponent (yellow) Enter

Answers

An electron and proton are separated by a distance, and the distance is: 1.517 × 10⁻¹⁴ m.

What is the charge of electron?

Positively charged particles include electrons. The magnitude of the negative charge is 1.602 x 10⁻¹⁹ C.

The electron, the lightest known stable subatomic particle, is regarded as the fundamental representation of electric charge.

Given that,

Charge of the electron is 1.602 x 10⁻¹⁹ C

electric force between them is 1.000 N

Electrostatic force between electron and proton:

F = [K × q(p) × q(e)] / r²

or, r² = [K × q(p) × q(e)] / F

or,  r² = (8.99 × 10⁹ N.m²/C²) × (1.602 × 10⁻¹⁹ C)²

or, r = 1.517 × 10⁻¹⁴ m

here. co-efficient = 1.517 and exponent = -14

To know more about electronic charge refer to:

https://brainly.com/question/874116

#SPJ1

A rifle is aimed horizontally at a target 45 m m away. The bullet hits the target 2.1 cm below the aim point.

What was the bullet’s flight time? (assume air resistance is 0)
What was the bullet’s speed as soon as it leaves the barrel?

Answers

The bullet's flight time with zero air resistance is 0.065s and the bullet speed as soon as it leaves the barrel is 692.3m/s.

How to calculate flight time and speed?

To calculate flight time of the bullet we apply the formula [tex]h = \frac{1}{2} gt^{2}[/tex]

Where h = vertical displacement of bullet in meters, 2.1cm to 0.021m

g = is a gravitational constant of 9.8

t = time of flight in seconds

To find t =

[tex]t = \sqrt{\frac{2h}{g} }[/tex]

[tex]t = \sqrt{\frac{2 * 0.021}{9.8} }[/tex] = [tex]t = \sqrt{\frac{0.042}{9.8} }[/tex]

[tex]t = \sqrt{0.004286}[/tex]

t = 0.065s

For speed of bullet:

[tex]v = \frac{s}{t}[/tex]

Where v = velocity

s = horizontal distance/range of target, 45m

t = flight time in seconds, 0.065s

[tex]v = \frac{45}{0.065}[/tex]

v = 692.3m/s

The bullet's flight time on a horizontal target at 45m from the formula [tex]h = \frac{1}{2} gt^{2}[/tex] is 0.065s and using the time of flight to divide the range, the bullet leaves the barrel at a speed of 692.3m/s

Learn more on bullet trajectory here: https://brainly.com/question/16887094

#SPJ1

You pick up a 2.6 kg can of paint from the ground and lift it to a height of 1.7 m .

A: How much work do you do on the can of paint? Express your answer using two significant figures.

B: You hold the can stationary for half a minute, waiting for a friend on a ladder to take it. How much work do you do during this time? Express your answer using two significant figures.

C: Your friend decides against the paint, so you lower it back to the ground. How much work do you do on the can as you lower it? Express your answer using two significant figures.

Answers

Work done in each case is 43.36 N ,-43.36 N , 41.97 N/m

What is work done ?

The definition of the work performed by a force is the sum of the products of the magnitude of this force acting in the displacement's direction displacement.  W = F x d.

(a)  W = F × d

      F = ma = 2.6×9.81

     W = 2.6×9.81×1.7 = 43.36 J

     Work done is 43.36 N

(b)  Zero

     because distance is zero in this case

     W = -43.36 J

     Work done is -43.36 N

(c)  KE = 0.5×m×[tex]v^{2}[/tex] = 0.5×1770× [tex]120^{2}[/tex] = 1.274×[tex]10^{7}[/tex] J

     0.5×m×[tex]v^{2}[/tex] = 0.5 ×k× [tex]x^{2}[/tex]

     k = 1.6×[tex]2.1^{2}[/tex]/[tex]0.41^{2}[/tex] = 41.97 N/m

     Work done is 41.97 N/m

Work done in each case is 43.36 N ,-43.36 N , 41.97 N/m

To know more about Work Done

https://brainly.com/question/13662169

#SPJ4

this is the position vs. time graph of a mass on a spring. what can you say about the velocity and the net force at the instant indicated by the dotted line?

Answers

The position versus time graph for a mass on a spring looks like this. What can you tell us about the velocity and the net force at the moment the dotted line appears. Net force is to the right and velocity is zero.

How steep will the location versus time graph and the velocity versus time graph be?

A position graph's slope is a representation of an object's velocity. As a result, the slope's value at a certain moment corresponds to the object's velocity at that moment.

What information about an object's motion is revealed by the slope of a position vs. time graph?

A position-time graph's slope is a measure of velocity. The rate of change of motion increases with slope steepness. A position-time graph can be used to determine average velocity, which is equal to the change in position divided by the corresponding change in time.

To know more about velocity versus time graph visit;

https://brainly.com/question/2695120

#SPJ4

Wave a carries more energy than wave b has a smaller ____than with a

Answers

Wave a carries more energy than wave b. Wave b has a smaller amplitude than wave a.

Those waves carry an amount of energy that can be measured. The energy in a wave is determined by two variables. One is amplitude, which is the distance from the rest position of a wave to the top or bottom. Large amplitude waves contain more energy. Wave A has greater intensity and transfers more energy. Wave B has greater intensity and transfers more energy. Waves that require matter to transfer energy are mechanical waves. The matter through which a mechanical wave travels is called a medium. A mechanical wave travels as energy is transferred from particle to particle in the medium. There are two kinds of mechanical waves. The greater the amplitude of the wave the greater the wave's energy. ... A wavelength will travel only as long as it has the energy to carry. Gamma rays

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. Electromagnetic waves cause oscillations in electrical and magnetic fields. It is important to remember that all waves transfer energy but they do not transfer matter. For example, if a ball is placed on the surface of a pond when ripples move across it, the ball will move up and down but not outwards with the wave.

Learn more about Wave Energy-Amplitude Relationship here:-

https://brainly.com/question/15849416

why does neptune appear blue and jupiter red? why does neptune appear blue and jupiter red? neptune is hotter, which gives bluer thermal emission. methane in neptune's atmosphere absorbs red light. neptune's air molecules scatter blue light, much as earth's atmosphere does.

Answers

Methane in Neptune's atmosphere absorbs red light.

Why does Jupiter appear reddish brown while Neptune appears blue?

Methane, which makes up 2% or less of Neptune's atmosphere, is what gives the planet its blue tint.

Neptune: Is it a gas or a water?

Like Uranus, Neptune is an icy giant.It resembles a gas giant.It is composed of a solid core the size of Earth flowing over a soup or stew of water, ammonia, & methane.A dense, windy atmosphere surrounds Neptune.

To know more about  neptune visit:

https://brainly.com/question/9048375

#SPJ4

imagine an experiment where we uniformly heat three containers, one with water, one with dry sand, one with damp sand. which one would experience the greatest increase in temperature?

Answers

Dry sand will experience the greatest increase in temperature when we uniformly heat three containers.

The reason behind is that the intermolecular force between the particles  in dry sand is weakest as compared to water particles and damp sand particles. Because of weak intermolecular force, particles have certain amount of distance between each other, due to that on supplying continuous heat  those particles feels the increased effect and the similar phenomenon is happened with all particles of dry sand, due to that there is a collective increase in temperature on continuously supply of heat.

Water particles and damp sand has strong intermolecular force of attraction as compared to dry sand, due to that they don't feel much experience of increased temperature.

To know more about temperature, visit here:

https://brainly.com/question/11464844

#SPJ4

a large aquarium of height 5.00 m is filled with fresh water to a depth of 2.00 m. one wall of the aquarium consists of thick plastic 8.00 m wide. by how much does the total force on that wall increase if th

Answers

If a sizable aquarium with a height of 5.00 m is filled wit fresh water to the a depth of 2.00 m, the total force on that wall will grow to F=4.69510 5 N.

What does the word "force" mean in science?

The word "force" has a clear definition in science. It is completely fair to refer to a force of this size as either a pushing or a pull. An object cannot be "contained" by a force or "exist in" it. A force is felt by one item coming from another. A force can be any object, whether it's living or not.

What are force and an example?

The word "force" refers to an outside source that leads a body to have a tendency to alter or alter its status. The body can change shape, size, and direction when force is applied to it. Using your feet to kick a ball, open and close doors, or knead dough are some examples.

To know more about force visit:

https://brainly.com/question/13191643

#SPJ4

what features of the milky way's appearance in our sky led scientists to conclude that it is much wider than it is thick?

Answers

The Milky Way is the slender ribbon of many resolvable stars. unique aspects of the milky way's appearance in our sky prompted astronomers to infer that it is far broader than it is thick.

The Milky Way is the galaxy that contains our solar system, and the term refers to how the galaxy appears to us on Earth: as a hazy strip of light in the night sky made up of stars that are too close together to be seen individually. The title "Milky Way" comes from the Latin route lactea, which is a translation of the Greek (galaktikos kklos), which means "milky circle." From Earth, the Milky Way appears as a band because its disk-shaped structure is seen from within. In 1610, Galileo Galilei used his telescope to break the band of light into individual stars for the first time. Most astronomers believed that the Milky Way held all of the universe's stars until the early 1920s.

Learn more about Milky way here:

https://brainly.com/question/29379271

#SPJ4

the latent heat for the water/steam transition is 2256 kj/kg, i.e., to convert 1 kg of water into steam requires 2256 kj. what is the latent heat per molecule of h2o? express your answer in joules and in ev.

Answers

H2O molecules have a latent heat of 124976.7 J/mol when expressed in joules. This is comparable to about 124976 electron volts. 7 J/mol equals 7.2 1020 eV.

Why do electron volts exist?

When an electron accelerates in an electromagnetic current created by a one volt potential difference, it gains kinetic energy, which is measured in electron volts.

How many volts are there in an electron?

The meaning of an electron energy (eV) is The amount of kinetic energy that an electron gains or loses when it goes from rest across a potential of one volt is known as an electron or electron-volt. Energy is measured in electron volts. 1.602176634 10-19 J is the equivalent of one electron volt.

To know more about  electron volts visit:

https://brainly.com/question/29650228

#SPJ4

the wave velocity of the first overtone frequency of a string is 75 m/s. what is the wave velocity of the fundamental frequency? opensax

Answers

The wave velocity of the fundamental frequency is 75 m/s.

The wave velocity of the fundamental frequency of a string can be calculated using the equation:

Wave Velocity = 2 x Overtone Frequency x Wavelength

Substitute the given values in the equation

Wave Velocity = 2 x (1/2 x 75 m/s) x Wavelength

Solve for the wavelength:

Wavelength = Wave Velocity / (2 x (1/2 x 75 m/s))

Substitute the given wave velocity in the equation:

Wavelength = 75 m/s / (2 x (1/2 x 75 m/s))

Simplify the equation:

Wavelength = 75 m/s / 75 m/s

Solve for the wavelength:

Wavelength = 1 m

Substitute the wavelength in the equation:

Wave Velocity = 2 x (1/2 x 75 m/s) x 1 m

Solve for the wave velocity:

Wave Velocity = 75 m/s

For more questions like Wave Velocity click the link below:

https://brainly.com/question/20283198

#SPJ4

Which of the following is the process of making a new product to be sold by a business or enterprise to its customers? a.product analysis
b.product conceptualization
c.product development
d.product implementation

Answers

Answer: option (c)

Explanation:

Product development is also known as new product operation.

The main ideal is to satisfy the consumer demand.

There are some stages of product development process. They're idea generation, webbing, conception development and testing, request strategy, developing the new product, request testing, request commercialization.

The process of developing a product is managed by product inventor.

Product development can be done in two ways, the new product is introduced or the being products can be bettered according to the client satisfaction.

To know more about

https://brainly.com/question/28013469

a figure skater is spinning slowly with arms outstretched. she brings her arms in close to her body and her moment of inertia decreases by 1/2. by what factor does her rotational kinetic energy change?

Answers

The moment of inertia is in half as she draws her arms closer to her torso. A double increase in angular velocity.

What is the straightforward meaning of velocity?

The shift that an object / particle experiences with regards to time is expressed vectorially as velocity. The meter / second (m/s) is the accepted unit of flow speed (also known as speed).

How do you calculate velocity?

The vector quantity velocity (v), denoted by equation v = s/t, quantifies displacement (not change in position, s), over change in time (t). Velocity (or rate, ) is a scalar number, denoted by the formula r = d/t, that quantifies the average distance (d) so over change in time (t).

To know more about velocity visit:

https://brainly.com/question/28738284

#SPJ4

what device in a laser printer provides voltages to the corona wires? group of answer choices acps dcps hvps corona assembly

Answers

HVPS  is the  device in a laser printer provides voltages to the corona wires.They operate by positively charging a drum with a heated wire.

which is subsequently passed over by a laser that reverses the charge where it lands. The picture or text that will be printed is represented by the portions of the drum that are now negatively charged.The toner particles adhere to the negatively charged regions of the drum when a toner roller is moved over it. Electrical stimulation known as high-voltage pulsed stimulation (HVPS) is used to maintain and extend range of motion, avoid or delay muscular spasm, and retrain muscles..In a corona discharge, the neutral fluid, generally air, is ionized to produce an area of plasma surrounding the electrode, which allows a current to flow from the electrode with a high potential into the plasma-filled region.

complete question:

What device in a laser printer provides voltages to the corona wires?

A. Corona assembly B. ACPS C. DCPS D. HVPS

learn more about electrode Refer:brainly.com/question/29896881

#SPJ4

Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences. What is the leading hypothesis for Venus's lack of water? (a) Venus formed closer to the Sun and accreted very little water. (b) Its water is locked away in the crust. (c) Its water molecules were broken apart, and hydrogen was lost to space

Answers

(c) Its water molecules were broken apart, and hydrogen was lost to space.

The evidence that the Venus once used to have water was the deuterium to hydrogen ratio in the atmosphere of Venus is about 150 times of earth.

Proofs are Venus must have started with oceans worth water.

The water is now escaped because when the UV rays from the sun as fallen upon the water the water molecules were broken and hydrogen went to the space.

And therefore, there is no water now present on the planet Venus.

scientist are still finding ways to discover life on the planet Venus and other planets.

To know more about Venus,

https://brainly.com/question/28566522

#SPJ4

we measure the magnitudes of the electric field and magnetic field at a given instant and at a given point in an electromagnetic wave. how are the magnitudes related to the speed of light

Answers

The Magnitude of electric and magnetic field is related by its ratio to speed of light .

In an EM wave, the electric field is a loop and oscillates with time, without charge it is strange. Normally, electric fields are lines from positive charge to negative charge. Due to the changing electric field, an associated magnetic field develops according to Maxwell's laws.A neutral nature never arises. The fields scatter when they encounter charged particles, which is called reflection or absorption of EM waves.In classical theory, in the absence of charged matter ,electromagnetic waves are vacuum solutions of Maxwell's equations; you can add the vacuum solution to any other solution and the result will still be a valid solution.In the presence of charged matter, if that matter is not rigid (that is, if it responds to electrostatic or magnetic forces), things change. If a magnetic field is introduced, it can rearrange the charged matter and this in turn would affect how electromagnetic waves propagate through that medium. For example, the presence of galactic magnetic fields affects interstellar dust, which in turn can polarize light, giving us a means to probe galactic magnetic fields by looking at the polarization of distant starlight.[tex]\frac{E}{M} =C[/tex]

E=electric field , M=Magnetic field , C=speed of light

To understand more about polarization -

https://brainly.com/question/29217577

#SPJ4

. justify the student’s claim. in your justification, include a description of what occurs at the particulate level when the alloy and the water have reached thermal equilibrium.

Answers

The average kinetic energy of the particles in both objects is now the same.

What is  kinetic energy ?

The energy an item has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.

The description of the given question is described in the explanation section below.

The metallic temperatures drop as well as the level or temperature of water rises, as the temperature including both water & steel is almost the same, zero heat transfer takes place.

Molecules of liquid (water) will give energy benefit equivalent to either the energy lost via metal. Even before two entities interacted around the same degree they seem to be in thermodynamic equilibrium.

To learn more about kinetic energy  visit:https://brainly.com/question/15764612

#SPJ4

5. how far from the center of the earth would a child with a weight of 300n on earth have to be for her weight to be 45n? use the radius of the earth as 6.371 x 106m. g

Answers

The child should be at a distance of [tex]13.8 * 10^{6} m[/tex] from center of earth.

We know that gravity at height h is given by , [tex]g = \frac{GM}{(r+h)^{2} }[/tex]

where, G = gravitational constant = [tex]6.67 * 10^{-11}[/tex]

           M = mass of earth = [tex]5.98 * 10^{24} kg\\[/tex]

            r = radius of earth = [tex]6.371 * 10^{6} m[/tex]

     let g = [tex]9.8 m/s^{2}[/tex]

           h = distance from center of earth

The value of g is inverse to the height above the earth’s surface; therefore, it decreases with increasing height.

Putting these values in above equation we get, h = [tex]13.8 * 10^{6} m[/tex]

To know more about gravitation visit:

https://brainly.com/question/24199424

#SPJ4

For vibrational motion, what term denotes the maximum displacement from the equilibrium position? O wavelength O frequency O period O amplitude Submit Request Answer

Answers

Amplitude X is the name given to the largest departure from equilibrium. It depends on the type of oscillation on the units for amplitude and displacement.

The maximum displacement or distance that a point on a vibrating body or wave can move is known as the amplitude in physics and is calculated from the position where the point is at equilibrium. The length of the vibration route is divided in half by this value. Amplitude is the largest deviation from a vibrating body's mean position. The mass is changing direction while it is at its location of greatest displacement, hence velocity is zero.

To know more about displacement,

https://brainly.com/question/321442

#SPJ4

Other Questions
Need to help my sister with these problems The numbers of cars sold at a certain dealership on six of the last seven business days were 4, 7, 2, 8, 3, and 6, respectively. If the number of cars sold on the seventh business day was either 2, 4, or 5, for which of the three values does the average (arithmetic mean) number of cars sold per business day for the seven business days equal the median number of cars sold per day for the seven days?I. 2II. 4III. 5A) II onlyB) III onlyC) I and II onlyD) II and III onlyE) I, II, and III Graph the image of the given triangle after the transformation with the rule (x, y)(x, y).Select the "Polygon" button from the tool bar to plot your triangle. You may use the "Move" button to move the triangle after it is created.Keyboard InstructionsInitial graph stateThe horizontal axis goes from -10.8 to 10.8 with ticks spaced every 1 unit(s).The vertical axis goes from -10.8 to 10.8 with ticks spaced every 1 unit(s).Polygon with coordinates: (3, 4), (4, 7), (8, 2), (3, 4). Manager's Hot Seat: Groping For Answers Equal Employment Opportunity Laws Offer Employee Protection Against Discrimination. The DNA helicase animation shows the bacteriophage T7 helicase unwinding DNA. Which of the following are critical components of the helicase mechanism of action necessary to unwind DNA?Choose one or more:A.binding of four helicase subunits to the double-stranded DNAB.dissociation of the helicase subunitsC.ATP binding and hydrolysisD.oscillating loops pulling the single-stranded DNA through a central holeE.conformational changes of subunits A pendulum is swinging in a circular path at angle and string length L. What is the tension in the string? Use m, g, and . Your answer should have m, g, , and a trig function. Answer will be T=.What is the centripetal acceleration? Your answer will have g, , and 1 or 2 trig functions. Your answer will be [tex]a_{c}[/tex]=. Read the paragraph and choose a sentence that describes it best. When most people imagine an archetypal desert landscapewith its relentless sun, rippling sand and hidden oasesthey often picture the Sahara. But 11,000 years ago, what we know today as the worlds largest hot desert wouldve been unrecognizable. The now-dessicated northern strip of Africa was once green and alive, pocked with lakes, rivers, grasslands and even forests. So where did all that water go? The Sahara has long been subject to periodic bouts of humidity and aridity. These fluctuations are caused by slight wobbles in the tilt of the Earths orbital axis, which in turn changes the angle at which solar radiation penetrates the atmosphere. At repeated intervals throughout Earths history, theres been more energy pouring in from the sun during the West African monsoon season, and during those timesknown as African Humid Periodsmuch more rain comes down over north Africa. similar to humans, research suggests that monkeys reared in the wild fear snakes because they: the collection of data from a process to support statistical process control and analysis is most suitable when there is awareness, by all persons involved with the process, that data is being collected for a statistical process control analysis. this is a necessity so that individuals can focus on the task at hand. which of the following is not true about the earliest primate-like fossils? a) they were rodent-like, resembling tropical squirrels b) they had large brains relative to living primates c) some exhibited a nail instead of a claw on the hallux or big toe d) they exhibited primate-like cuspal patterns on their molar teeth Suppose a triangle has two sides of length 7 and 8 and the included angle has a measure of theta degrees. What is the maximum area of the triangle? Dmitry suspects that his friend is using a weighted die for board games. To test his theory, he wants to see whether the proportion of odd numbers is different from 50%. He rolled the die 40 times and got an odd number 14 times.Dmitry conducts a one-proportion hypothesis test at the 5% significance level, to test whether the true proportion of odds is different from 50%(a) H0:p=0.5H0:p=0.5; Ha:p0.5Ha:p0.5, which is a two-tailed test.(b) Use Excel to test whether the true proportion of odds is different from 50% Identify the test statistic, z, and p-value from the Excel output, rounding to three decimal places. The breaking strength of hockey stick shafts made of two different graphite-kevlar composites yields the following results (in Newtons):For Composite 1 the average and the standard deviation of the 14 hockey sticks are respectively 487.42 Newtons and 11.528 Newtons.For Composite 2 the average and the standard deviation of the 12 hockey sticks are respectively 466.76 Newtons and 7.193 Newtons.Use a 5% significance level to test the claim that the standard deviation of the breaking strength of hockey stick shafts made of graphite-kevlar composite 1 is different from the standard deviation of the breaking strength of hockey stick shafts made of graphite-kevlar composite 2.Procedure: Please help, giving thanks and brainliest:) (Please give an explanation if possible and please dont give a fake answer) Choose the correct words for the blanks.(1)who submitted the committee.are three company managers(2) proposals to (1) Their (2) there (1) There (2) their(1) They're (2) there (1) There (2) they're Which statement best describes the relationship.O Stantoty uses complex, academic language to makean appeal to pathos.O Stanton uses formal, legal language to make anappeal to logos.O Stanton uses dramatic, emotional language tomake an appeal to pathos. How do you find how many times greater something is in scientific notation Write an essay discussing the effects of colonial rule on the countries that were colonized. Be sure to discuss at least two specific examples. What is meant by subsistence agriculture?; What is subsistence agriculture and how it is beneficial?; What is subsistence farming and why is it so important in Africa?; What are the problems of subsistence agriculture? Rewrite the following equation in slope-intercept form.13x 3y = 18