When a body is in equilibrium, neither its internal energy nor its motion are affected by the passage of time.
What does an equilibrium position look like?When minor, externally generated displacements from an equilibrium result in forces that tend to counteract the displacement and bring the body or particle back to the equilibrium state, the equilibrium is said to be stable.Examples are a brick that is resting on a flat surface or a weight that is suspended by a spring.The least total potential energy position, or in this example, the maximum kinetic energy position, can be used to determine the equilibrium position.To learn more about equilibrium position refer to:
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workers building pyramids in ancient egypt needed to move a very heavy stone out of the way of a ramp they were constructing. the best machine they could use to do this work was a .
Workers building pyramids in ancient Egypt needed to move a very heavy stone out of the way of a ramp they were constructing. The best machine they could use to do this work was a sledge.
For the construction of pyramids, the ancient Egyptians had to transport heavy blocks of stone and large statues across the desert. So, the Egyptians placed these heavy blocks on a sledge which was pulled by workers across the sand.
They also used the method of placing the rocks on the tracks made out of tree trunks and rolled the distance.
The stones used in constructing the pyramids were lifted by means of a short wooden scaffold.
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examine the first figure(figure 1), in which you see jackie's spaceship traveling at 1000 km/hr as she throws the baseball at a speed of 100 km/hr . how fast would you say the baseball is going?
You can see the ball travelling alongside Jackie at a rate of 1000 km/h before she throws it.The ball will appear to be going at a speed of 1000 km/h plus 100 km/h, or 1100 km/h, because she tosses in the same direction than you perceive her moving.
How do you define speed?The speed at which an object's location changes in any direction. The helps to guide in comparison to the time it took to cover the distance is how mobility is characterized. Since speed simply has a direction and no magnitude, it is a scalar quantity.
What is speed and what is its unit in physics?The pace at which a distance changes over time is referred to as speed. It has a dimension of time-distance. As a result, the fundamental unit of time and also the basic measure of space are combined to form the Special name of speed. As a result, m/s is the Si derived unit of speed.
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If we continue heating a piece of initially room-temperature metal in a dark room, what will be its first visible color?.
Answer:
Red is the longest of the visible wavelengths.
One would see red first
The visible spectrum can be characterized by "ROY G BIV".
Or
Red-Orange-Yellow-Green-Blue-Indigo-Violet
From the longest wavelength to the shortest (7000-4000 Angstroms)
A newly-discovered planet, "Cosmo", has a mass that is 4 times the mass of the Earth. The radius of the Earth is R
e
. If the gravitational field strength at the surface of Cosmo is equal to that at the surface of the Earth, find the radius of Cosmo.
If the radius of Cosmo is equal to 2Re, the gravitational field strength at Cosmo's surface is equal to that at Earth's surface.
What is the Earth's radius?The Earth's radius, as measured by 183 high school students involved in the World Year of Physics project "Measure the Earth with Shadows," is 6563 km, as opposed to the commonly accepted figure of 6371 km for the mean radius.
Is the Earth's radius 6400 kilometres?About ten times as much mass as Mars is the Earth. If an object weighs 200 N on Earth's surface, it will weigh similarly on Mars.
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What has a wavelength of 10 m?.
Therefore, the frequency of the wave is 10 Hz when it has wavelength of 10 meters.
Wavelength (λ) = 10 nm
Speed of the wave = 340 m/s
To find:
The frequency of the wave
Formula used:
N=v/λ
where
n is the frequency
v is the speed
λ is the wavelength
Step-by-step explanation:
n=340/10
n=10Hz
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a camera takes a properly exposed photo at f/5.6 and 1/160 s. part a what shutter speed should be used if the lens is changed to f/4.0?
A camera takes a properly exposed photo at f/5.6 and 1/160 s. part a the shutter speed should be used if the lens is changed to f/4.0 is 1/500 s.
Generally speaking, the use of the same old rule of thumb is to make the shutter velocity same for your focal period whilst hand-preserving your digital digicam.
For example, in case you are capturing with a 200mm lens then you definitely need to preserve your shutter velocity at 1/2 hundred sec or above to keep away from any blur happening from digital digicam shake. The shutter velocity that ought to be used if the lens is modified to f/4.zero is : 1/500 s. The courting among the shutter velocity and the focal ratio is an inverse courting.
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What are the 4 main functions of the circulatory system?.
Exchanges carbon dioxide and wastes for the delivery of oxygen and nutrients (such as minerals, vitamins, and glucose) to the body's cells.
What is circulatory, exactly?The circulatory system that transports blood throughout the body and houses the heart. This system assists tissues in receiving enough oxygen, nutrients, and waste products, as well as in eliminating waste.
What is the purpose of circulation?Blood veins in the circulatory system are responsible for moving blood away from and back towards the heart. Blood is transported away from the heart by arteries and returned via veins. Oxygen, nutrients, and hormones are delivered to cells through the circulatory system, which also eliminates wastes like carbon dioxide.
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when a rigid object (like a merry-go-round) rotates about a fixed axis, what is true about all the points in the object?
when a rigid object (like a merry-go-round) rotates about a fixed axis, it is true about all the points in the object.
What is rigid object?
The idea of a body that does not deform or alter shape is a "hard body." Formally, it is described as a collection of particles having the property that the distance between them stays constant throughout the body's motions.
What is fixed axis?
The rotation of a rigid body, or an item that does not deform when it moves, around a fixed axis is referred to as fixed-axis rotation. We'll demonstrate how to apply the theories we've discovered so far regarding translational motion to a rotating object around a fixed axis.
Everybody experiences the same angular acceleration.
Therefore, when a rigid object (like a merry-go-round) rotates about a fixed axis, it is true about all the points in the object.
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hubble's law states that question 8 options: a) more distant galaxies are younger b) the greater the distance to a galaxy, the fainter the galaxy appears c) the greater the distance to a galaxy, the greater is the galaxy's redshift d) most galaxies are found in clusters
The correct option regarding Hubble's Law is Option B : the greater the distance to a galaxy, the fainter the galaxy appears .
What is the Hubble's Law ?We may learn a lot about the nature of the cosmos from Hubble's law, which states essentially that a galaxy's velocity (or, as it is commonly displayed, its redshift) is precisely proportionate to its distance.
The relationship between distance and velocity should not exist if the cosmos is constant and unchanging.
Because the Hubble constant, H, is used to calculate the precise age of the universe, Hubble's law is regarded as being extremely significant. Additionally, it aids in the comprehension of dark energy and matter.
By displaying the distances that distant galaxies are traveling from us, it illustrates how the universe is expanding.
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Rocket final velocity | Problem A rocket with total mass m-is in deep space, traveling with velocity vi in the x-direction. The rocket suddenly shoots some of its fuel out in the y-direction. The mass of the fuel is 1/5 the total mass of the rocket. Which of the following could be the final velocity of the rocket? O V = V; <-1/2,5/4> ما O Ve = V; <1/2, -5/4> O V+ = V; <4/5, -1/2> O V1 = V; <-4/5, 1/2> O V = V; <5/4, -1/2> O V+ = V; <-5/4, 1/2>
The final velocity of the rocket is Vf = Vi < 5/4, -1/2 >. Hence, Option E is the correct answer.
We have a mass of the rocket = m
The velocity of the rocket = vi
The rocket is traveling in the x-direction and the fuel is ejected in the y-direction.
mass of the fuel= m/5
the speed at which the fuel is ejected= 2vi
Now, let us find the final velocity along the x-direction i.e. vx
[tex]m_{rocket}[/tex] * vi = [tex](m_{rocket} -m_{fuel})[/tex] * vx
m*vi = (m-m/5)vx
m*vi = (4/5)m*vx
hence, we have vx = (5/4) vi
Similarly, along the y- direction,
0 = [tex]m_{fuel}[/tex] * 2vi + [tex](m_{rocket} -m_{fuel})[/tex]vy
0 = m/5 * 2vi + (m-m/5)vy
0 = m/5 * 2vi + (4/5)m * vy
(4/5)m * vy = - m/5 * 2vi
(4/5)m * vy = - m/5 * 2vi
vy = -(1/2)vi
Hence, the final velocity is vf = vi <5/4, -1/2>.
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The complete question is-
Rocket final velocity | Problem A rocket with total mass m-is in deep space, traveling with velocity vi in the x-direction. The rocket suddenly shoots some of its fuel out in the y-direction at the speed 2vi. The mass of the fuel is 1/5 the total mass of the rocket. Which of the following could be the final velocity of the rocket?
O V = V; <-1/2,5/4> ما O Ve = V; <1/2, -5/4> O V+ = V; <4/5, -1/2> O V1 = V; <-4/5, 1/2> O V = V; <5/4, -1/2> O V+ = V; <-5/4, 1/2>
a skateboarder is trying to skate horizontally off a building and jump over a pool as shown! the pool is 10.0m wide and the roof of the building is 12.0m above where he will land. neglect drag.
a)2.56s long will the skateboarder remain in the air.
b)The skateboarder need to barely clear the pool 9.77 m/s.
What is speed ?The speed at which an object's location changes in any dimension. The distance traveled in relation to the time it took to travel that distance is how speed is defined. Given that it just has a path and no amount, speed is still a scalar number.
Briefing:a)Width of the pool, d= 10 m
Height of the building, h = 12 m
h = v₀t + 1/2 gt²
h = 0 + 1/2 gt²
gt² = 2h
t = √2h/g
t = √ 2 * 12 / 9.8
t = 2.56s
b)The skateboarder's required beginning speed to clear the pool is calculated as follows:
v = d /t
v = 10 / 2.56
v = 9.77 m/s
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The complete question is -
A skateboarder is trying to skate horizontally off a building and jump over a pool as shown! The pool is 10.0m wide and the roof of the building is 12.0m above where he will land. Neglect drag.
a)How long will the skateboarder remain in the air?
b)With what initial speed (in given units) does the skateboarder need to barely clear the pool?
the maximum horizontal distance a boy can throw a ball is 31 m. assume he can throw with the same initial speed at all angles. how high (in m) does he throw the ball when he throws it straight upward?
The maximum horizontal distance a boy can throw a ball is 31 m with a projectile height of 480.5m.
Generally speaking, a projectile with more volume will experience more air resistance, which will shorten the projectile's range. It is important to take into account the projectile's surface because a smooth projectile will encounter less air resistance than one with a rough surface, and irregularities on the projectile's surface could alter its trajectory if they cause more drag on one side than the other. A golf ball's dimples, for example, may actually extend its range because they lessen the amount of turbulence that is created as the projectile travels behind them. The projectile's mass also becomes crucial because a projectile with more mass has more kinetic energy and will therefore encounter less air resistance. The way the projectile is weighted can also have an impact on its trajectory because an unevenly weighted projectile may spin unpredictably as a result of the magnus effect.Height= R²/2 =31²/2 = 480.5mInconsistencies in a projectile's shape and weight distribution usually disappear if it is rotated along its axes of travel.
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when waves reach shallow water, they are often bent and tend to become parallel to the shore. this process is termed . group of answer choices reflection refraction oscillation translation
In shallow water, waves frequently bend and start to run parallel to the shore. Refraction is the word for this procedure.
How is refraction accomplished?Refraction, which also happens with sound, movement, and other waves, is the bending if light as it passes through transparent materials. Because of this bending brought on by refraction, we are able to make lenses, magnifying glasses, dichroic, and rainbows.
Refraction vs. reflection: what are they?When light strikes a medium on a plane, reflecting is the act of the light reflecting back. Refraction seems to be the process by which a material changes the route that light takes as it passes through it, allowing the light to bend. So, the main distinction between reflection and reflection is this. Mirrors are where this phenomenon typically occurs.
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What are the types of realistic fiction?.
The types of realistic fiction: are historical and contemporary fiction.
Practical fiction creates imaginary characters and conditions that depict our world and society. It focuses on themes of growing up and confronting non-public and social problems. This genre portrays characters coming to apprehend themselves and others.
Realistic Fiction is divided into two elements: ancient and modern-day fiction. ancient fiction takes place in a time far-flung enough to be taken into consideration records, as opposed to contemporary fiction which takes vicinity these days or within the recent beyond. sensible fiction is a style of testimonies in which the events are made up, but they may easily occur in actual existence. those styles of stories take place in acquainted, ordinary settings and have normal characters.
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an experiment is conducted to compare 3 equally spaced dryer temperatures on fabric shrinkage. the researcher samples 15 pieces of wool fabric (labeled specimen 1-specimen 15). each temperature has 5 samples
In order to get a pure sample after the reaction and to get rid of all the extra moisture in the product, drying to constant weight is crucial.
What is dried to constant weight?According to the definition of "dried to constant weight," the drying process must be continued until at least two successive weights do not differ by more than 0.50 mg per g of the substance ingested. The second weighing will take place after a further hour of drying.Using this method, all water that may be present in a sample is heated off in order to totally dry it. This essentially guarantees that the sample's bulk consists solely of the sample and is free of varying amounts of water. A sample's dryness cannot be determined simply by looking at it. Drying a sample to its constant weight is the only reliable technique to know if it is dry. only afterTo Learn more About drying to constant weight refer to:
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What is the frequency of an electromagnetic wave with a wavelength of 200 m?.
A wavelength of 200 meters equates to a frequency of 1500 kHz.Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave:
What wavelength is it?A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (next crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).
What is a wavelength's alternate name?You may find 16 alternate words for wavelength on this page, including spectra, frequency, absorption, mid-infrared, thz, brightness, long wavelength, 850 nm, 1064 nm, and visible light.
Calculations:
Where c = 3 000 000 m/s (3*10^6 m/s), then:
3000000200 = 15000= 15 kHz.
Where c = 300 000 000 m/s (3*10^8 m/s), then:
300000000200 = 1500000= 1.5 MHz.
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analyze the cycling of matter and flow of energy within ecosystems through the processes of photosynthesis and respiration
Electrons go from glucose to oxygen during cellular respiration, creating water and release of energy. They move in the other direction during photosynthesis, beginning with water and ending with glucose.
What types of energy are there?Biochemical, electrical, radiant, mechanical, thermal, and nuclear energy are the six main types of energy. Additional forms including electrochemical, acoustic, electromagnetic, and others might be addressed in other studies.
The source of energy.Atomic nuclear processes in the Sun's core produced the power in the atoms. According to physicists, this Big Bang did. The simple answer is that we have always encountered and used energy, and that this has been true since the universe's creation.
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a uniform disk turns at 3.0 rev/s around a frictionless central axis. a nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk(figure 1). they then turn around the spindle with their centers superposed. What will be the angular frequency in rev/s of the combination when they start rotating together.
The angular frequency in rev/s of the combination when they start rotating together is 1.8 rev/s.
Apply conservation of angular momentum:
Ii.ωi=If.ωf
⇒ 1/2mR² ×3.0=( 1/2mR²+m(2R)²/12)ωf
⇒ωf =1.8rev/s.
A scalar representation of rotation rate in physics is called angular frequency, or "". It speaks of the angular displacement per unit of time, the rate of change of a sinusoidal waveform's phase, or the rate of change of the sine function's argument. The difference between angular frequency (measured in radians per second) and frequency (measured in cycles per second, also known as Hz) is two. Instead of the letter f, the symbol for frequency in this figure is. an axis-centered rotating sphere. Points further from the axis move more quickly, fulfilling = v / r. Angular frequency (), also referred to as radial or circular frequency, calculates the amount of angular momentum per unit of time. Therefore, it is measured in degrees (or radians) per second.
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Why does reactivity decrease as you move from left to right on the periodic table?.
As we move from left to right the metalic properties decreases and non-metalic property increases hence reactivity of the elements decreases.
What happen to reactivity of Metal as they move from left to right ?It happens because there are more valence shells and less attraction between valence electrons and the nucleus. Consequently, the propensity to take electrons from other atoms declines. Atoms become more electronegative as they move through a period.
The ability to lose electrons increases generally with atom size. The capacity to lose electrons increases with increasing shielding. The most active metal is to the left and down because metallic character grows down the table and diminishes across it.
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Liquid X is known to have a lower surface tension and lower viscosity than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome 20.0 mL each of Liquid X and Liquid Y are poured through a funnel, and the times t and ly needed to pour each liquid through lx will be greater than ty tv will be less than t lx will be equal to ty It's impossible to predict whether [x or ty wil o y the funnel are measured be greater without more information. mx will be greater than my Wax-coated particles carefully put onto the surface of Liquid X or Liquid Y will stay on the surface, if the particles are small enough. 0 mX will be less than my mx will be equal to my The heaviest mass of particle mx and my that will stay on each liquid's surface without sinking are measured. It's impossible to predict whether mx or m,y will be greater without more information.
Previous question
The time taken by the liquid X to pour into the funnel will be less than the liquid Y.
There are two liquids,
Liquid X and Liquid Y, Liquid X will has a lower viscosity and surface tension than Liquid Y.
The surface tension of a compound is the force of attraction felt by the particles on the liquid surface because of the liquid particle beneath the partcles. While on the other hand, the viscosity of the compound is defined as ability of the liquid to avoid its flow.
Because, Liquid X has less surface tension and viscosity, then it will not avoid the flow in funnel and also the particles of funnel will be less attracted towards the particles of the liquid X,
So, the time taken by the liquid X to pour into the funnel will be less than Liquid Y.
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A solid sphere of mass 4.0 kg and radius 0.12 m is at rest at the top of a ramp inclined 15ï‚°. it rolls to the bottom without slipping. the upper end of the ramp is 1.2 m higher than the lower end. find the sphere's total kinetic energy when it reaches the bottom.
The total Kinetic energy of sphere is KEtot=47J when the mass= 4.0 kg and radius = 0.12 m.
The regulation of conservation of strength states the whole strength of a closed device is constant. Therefore, strength is neither created nor destroyed, instead, it's miles handiest transformed from one shape to another. The sum of the kinetic strength and ability strength have to be the identical earlier than and after.
As here it is given:
mass=4kg, radius =0.12m. h=1.2m. By conservation of strength, the sum of the kinetic strength and the ability strength on its preliminary state (at rest) is same to the sum of the kinetic strength and ability strength whilst the sector has reached the bottom.[tex]KE1+PE1=KE2+PE2\\0+mgh=KEtot+0KEtot=mgh\\K\\Etot=(4kg)(9.8m/s2)(1.2m)\\KEtot=47kgm2/s2\\KEtot=47J[/tex]Read more about sphere :
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with what constant velocity would you have to push or pull the rod in order to make the magnetic force zero
Energy and Power Due to Motional Electromotive Force. Emf may be prompted in primary ways: Due to the movement of a conductor withinside the presence of a magnetic field. Due to the extrude withinside the magnetic flux enclosed via way of means of the circuit.
The length of the voltage may be various through 3 factors: The length of the magnetic discipline. The greater flux strains there are, the greater flux strains there are for the conductor to cut.
The lively period of the conductor. The velocity at which the conductor passes thru the discipline. Moving the bar to the proper decreases the vicinity of the loop, reducing the flux.
The caused modern need to generate a discipline out of the page. This calls for a counter-clockwise modern. The flux thru the loop is converting, so the loop attempts to oppose the alternate. The flux is converting due to the fact the bar is moving, converting the place of the loop. To oppose the alternate the loop makes the bar gradual down.
Thus the velocity (and the brought on emf and current) lower exponentially to zero.
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a massive linebacker collides with a smaller halfback at midfield. the force experienced by the linebacker is greater than the force experienced by the halfback. the resulting acceleration of the linebacker is [ select ] the resulting acceleration of the halfback.
The answer to the first blank is equal to and the second blank is less than.
How is force and acceleration related ?The acceleration of an object rises proportionally to the force applied to it. We can state that force and acceleration are identical because the mass does not change when the acceleration rises. So, doubling the force also doubles the acceleration.
Force and acceleration are directly correlated, as demonstrated by Newton's second law of motion. An object of a given mass will accelerate more quickly the more force is applied to it. For instance, when the force acting on an item is doubled, so is the acceleration.
The correct rewritten statement :
a massive linebacker collides with a smaller halfback at midfield. the force experienced by the linebacker is equal to the force experienced by the halfback. the resulting acceleration of the linebacker is less than the resulting acceleration of the halfback.
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how do the frequency and wavelength of the electromagnetic radiation change as you move from radio waves to gamma rays in the em spectrum? answer text
Radio waves have the lowest frequencies and longest wavelengths, while gamma waves have the highest frequencies and shortest wavelengths.
What do you understand by electromagnetic spectrum?Range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies is called electromagnetic spectrum. Electromagnetic spectrum describes all kinds of light, including those that humans cannot see.
Most of the light in the universe is invisible to human eyes. The light that we see which is made up of the individual colors of the rainbow, represents only a small portion of electromagnetic spectrum.
Speed is same for all electromagnetic waves but as the frequency increases, wavelength decreases.
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find the fluid force on the vertical plate submerged in water, where the dimensions are given in meters and the weight-density of water is 9800 newtons per cubic meter. newtons
The fluid force for the given rectangle is 171,500 N.
Consider the following formula for fluid force against a vertical flat plate:
If a plate is vertically submerged in a fluid of weight-density w from y=a to y=b on the y-axis. Then,
F = [tex]\int\limits^a_b[/tex]w.(strip depth).L(y)dy
where, L(y) is the length of the horizontal strip measured from left to right along the surface of the plate at level y,
F = [tex]\int\limits^a_b[/tex]w.(strip depth).L(y)dy
Now, if we set the coordinate axes such that the lower left vertex of the rectangle lies on the origin. Then the fluid force for the given rectangle is given by,
F = [tex]\int\limits^0_5[/tex]9800.(6-y).(1)dy
= 9800[tex]\int\limits^0_5[/tex](6-y)dy
= 171,500 N
Therefore, the fluid force for the given rectangle is 171,500 N.
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When using a microscope and the low objective lens is being used then which adjustment can you use?.
When using a microscope and the low objective lens is being used also we use fine adaptation or fine adjustment.
How is the light on a microscope acclimated?
Result for an image Which area of the microscope enables you to change how the slide is deposited in relation to the light source.
On the side of the emulsion(compound) microscope body is where the rheostat control for the microscope is located. generally, it'll be a clump that may be moved clockwise to consolidate the light or counterclockwise to dim it.
The condenser, which is deposited beneath the stage, focuses the light to produce strong, indeed illumination in the area girding the object being seen. Critical illumination is the process of fastening the light source's image via the condenser directly onto the airplane of the instance.
Therefore, When using a microscope and the low objective lens is being used also we can use the fine adaptation or fine adjustment.
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a 48-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 5.2 m/s2. ignore the effects of air resistance.
The force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 5.2 m/s2 is 230.4 N .
The resultant force (F) for Newton's second law is equal to the mass (m) multiplied by the acceleration (a). There are two forces at work: the weight and the force of the bungee cord (Fb). They are moving in the same direction but in opposite directions, hence the resulting force will be their differences
M*g - Fb = M*a
As a result of the downward acceleration, it is -5.2 m/s2.
Fb - 48*10 = 48*(-5.2) (-5.2)
Fb = -249.6 + 480
Fb = 230.4 N
One of the most significant laws in all of physics is Newton's second law. F = ma,
where F (force) and a (acceleration) are both vector values, can be used to represent a body whose mass m is constant. A body is accelerated according to the equation if there is a net force acting on it.
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the two masses in the figure are released from rest. after mass has fallen , it is moving with a speed of . mass has a mass of an mass has a mass of , and the pulley is frictionless. how much work is done during this time interval by the frictional force on block ?
Two masses m1=5 kg and m2=10 kg, connected by an inextensible string over a frictionless pulley, are moving as shown in the figure. The coefficient of friction of the horizontal surface is 0.15. The minimum weight m1 should be put on top of m2 to stop the motion seen in the image below.
From FBD of mass m1
we get t=5g
to stop the motion T≤μ(m2 +m)g
=>5g≤0.15(10+m)g
=>m≥23.3kg
so the minimum mass that can stop motion is 23.3kg.
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How do you solve ohm resistance?.
The required resistance is calculated from the formula R=V/I
Voltage is measured in volts current in amperes and resistance in ohms. A zero-ohm resistor is exactly what the term stands for. This is a single resistor made to have a resistance of zero ohms when measured. Zero ohm through-hole resistors often have a single black band indicating the value of the resistance.
The lower the impedance the more efficiently the electrical signal which is essentially music can pass through the speaker Power. A measure of how well a material blocks the flow of current induced by a voltage Resistance is measured in ohms. When electrons move through a conductor such as a metal wire an electric current flows.
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If the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would a. double. b. quadruple. c. drop to 12. d. drop to 14.
The option (d) drop to 1/4 is correct. i.e. The amount of radiation from the Sun that reaches the Earth's surface would be reduced to 1/4 if the Earth and Sun were two times further apart.
A planet half as far from the Sun as Earth would get four times as much solar radiation (5,472 W/m²), scorching it. Just one-fourth as much radiation (342 W/m²) would be needed to warm a planet twice as far from the Sun as Earth.The orbital period lengthens and the gravitational force weakens with a doubled distance from the sun.The gravitational force is inversely proportional to the square of the distance between the sun and earth.To know more about radiation
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