what happens when you throw something heavy vs throwing something light?

Answers

Answer 1

Answer:

throwing something heavy will take longer to throw then something light because force times time,  the heavier object will take longer to throw, and will acquire more momentum

Explanation:


Related Questions


5. Which of the following occurs as the potential energy of an object decreases?
A. Its kinetic energy increases.
B. Its thermal energy decreases.
C. Its chemical energy increases.
D. Its magnetic energy decreases.

Answers

A. Its kinetic energy increases occurs as the potential energy of an object decreases.

When mass is reduced, what happens to potential energy?

The mass and height of an item affect how much gravitational potential energy it has. More gravitational potential energy is held by an item the heavier it is and the higher it is above the surface of the earth. As weight and height grow, gravitational potential energy rises.

The mass of the item has a significant role in determining the gravitational potential energy. The mass and potential energy are intimately related. As a result, an item with higher mass has more potential energy.

A falling object loses potential energy while gaining kinetic energy. The difference between the increase in kinetic energy and the reduction in potential energy is exact. Work is a further crucial idea.

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A wet bar of soap (m=150 grams) starts at rest and slides without friction down a ramp 2.0 N meters long inclined at 7.3°. How long does it take to reach the bottom?

Answers

A wet bar of soap (m=150 grams) starts at rest and slides without friction down a ramp 2.0 N meters long inclined at 7.3°. It take 1.792 second time to reach the bottom.

What is friction?

Friction is a force that resists the relative motion of two contact points. Friction happens when two bodies come into touch with each other.

Given that,

A wet bar soap mass = 150 gm

Length (l) = 2m

angle (θ) = 7.3°

As we know, F = m × g × Sinθ

Acceleration (a) = [tex]\frac{F}{m}[/tex] = g × Sinθ

a = (9.8) × Sin 7.3°

a = 1.2452 m/s²

Next,

S = ut + 1/2 at²

2 = 0 + 1/2 × (1.2452) × (t)²  [ As, u = 0 m/s]

t² = 3.212335

t = 1.792 seconds

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Give one example of a situation where changing the background of an image might be useful.

Answers

Answer:

so people cant hack into a device (phone,tablet,computer) & find out where you are & kill you.

Explanation: very useful if you have any devices

what is the difference between copernicus and kepler description of planetary orbits?

Answers

Answer:

Kepler refined the Copernican model. Orbits are not circles along which planets move at a constant speed, but ellipses, in the central focus of which is the Sun. The planet moves in an ellipse with a variable speed depending on the distance to the Sun. On this basis, Kepler significantly simplified the Copernican model and formulated the laws of planetary motion in their orbits.

Two students push on a box in the same direction and a third student pushes in the opposite direction.
What is the net force on the box if each push with a force of 50 N? (Hint: It may help to draw a picture.

Answers

Two students push on a box in the same direction and a third student pushes in the opposite direction. The net force on the box if each push with a force of 50 N is (F)= 50N.

What is force?

According to the first law of newton's law of motion when a particle is at rest it always be at rest if any external thing affect on it. That external or internal thing that helps the object move that called Force. It can be measured in Newton, Dyne.

How can we calculate the net force?

To calculate the force we have to study the question carefully. Two  students push on a box in the same direction and a third student pushes in the opposite direction. So according to the question the net force will be,

F = 2f₁-f₂

Here we know,

f₁= The amount of force that two students apply on the same direction. = 50 N.

f₂= The amount of force that students apply on the opposite direction. = 50 N.

We have to calculate the net force= F N.

Now we put the values in above equation, we get,

F = 2f₁-f₂

Or, F= 100-50

Or, F=50N

From the above calculation we can say that,  The net force on the box if each push with a force of 50 N is (F)= 50N.

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Which of the following statements is NOT true about wave packets and their use in describing particles?

a. A wave packet is fundamentally a region over which a number of waves of different frequencies and amplitudes are added together to form a non-zero result.
b. The movement and travel of a wave packet is governed by the phase velocity.
c. An important property of a wave packet describing a particle is the superposition of many different waves.
d. The particle can be described using Fourier series and a Fourier integral.
e .An important property of a wave packet describing a particle is the localization of wave amplitude.

Answers

Answer:

b) is not true - the movement and travel of a wave packet is governed by the "group" velocity of the packet not the phase velocity

The movement and travel of a wave packet are governed by the "group" velocity of the packet, not the phase velocity, so option B is not a true statement.

What are wave packets?

A collection of waves with roughly the same momentum is referred to as a wave packet. Localization of particles can be achieved by combining waves into wave packets. The area where the particle is most likely to be discovered is indicated by the wave packet's envelope. This region spreads at the speed of a classical particle.

According to Heisenberg's principle, some uncertainty in the mo­men­tum must be permitted in order to gain some localization of the position of a paragraph. Therefore, you must assume that the initial quantum space wave function is nonzero for at least a brief range of various quantum values. A wave packet is a combination of constituent waves of this kind.

The movement and travel of a wave packet are governed by the "group" velocity of the packet, not the phase velocity.

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a laser pointer is placed on a platform that rotates at a rate of 1616 revolutions per minute. the beam hits a wall 8 m8 m away, producing a dot of light that moves horizontally along the wall. let thetaθ be the angle between the beam and the line through the searchlight perpendicular to the wall. how fast is this dot moving when theta

Answers

When a laser pointer is placed on a platform that rotates at a rate of 1616 revolutions per minute and beam hits a wall 8 m away, producing a dot of light that moves horizontally along the wall, then speed is calculated as, v=  430.88πsec²Ф

A small handheld device with a power source and a laser diode that emits very narrow coherent low-powered laser beam of visible light is a laser pointer.

As angle made with the vertical is given so we can write,

tanФ = x/8

x= 8 tanФ

differentiating both sides with time

v= dx/dt= 8 ω sec^²Ф* d/dt

As we know that;

ω= 2πf

=2π/1616/60

= 53.86π

v= 8*53.86π*sec²Ф

=  430.88πsec²Ф

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Differences between mercury and alcohol as thermometric liquid
Help me ASAP please

Answers

Answer:Mercury has a greater coefficient of thermal expansion than alcohol. This means a column of mercury will expand and rise more than a column of alcohol for the same temperature change. As a result, you can get finer readings with mercury

Explanation:

what is the maximum speed with which a 1200- kg car can round a turn of radius 92.0 m on a flat road if the coefficient of static friction between tires and road is 0.40?

Answers

The maximum speed with which a 1200- kg car can round a turn of radius 92.0 m on a flat road if the coefficient of static friction between tires and road is 0.40 will be 18.6 m/s.

A force that holds an object at rest is called static friction. The definition of static friction is: The resistance people feel when they attempt to move a stationary object across a surface without actually causing any relative motion between their body and the surface they are moving the object across.

The frictional force acting on the car is given by:

[tex]F_{f} =umg =(0.40) (1200kg)(9.81m/s^{2} )=4709N[/tex]

The force applied to an item in curved motion that is pointed toward the axis of rotation or the centre of curvature is known as a centripetal force. Newtons are used to measure centripetal force. The direction of the centripetal force is always perpendicular to the direction in which the item is moving.

However, the centripetal force, which keeps the car turning in a circle, is also related to the frictional force:

[tex]F_{f} =F_{c} =m \frac{v^{2} }{r}[/tex]

Where v is the fastest the car can travel while still in the turn. We may get the value of v by rearranging the formula and substituting r=88.0 m:

[tex]v=\sqrt{} \frac{Fx_{r} }{m} = \sqrt{}\frac{(4709N)(88..0m)}{1200kg}[/tex]

18.6 m/s

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What is the meaning of E = MC2, and why is it very famous everywhere?

Answers

The meaning of E = MC² is a energy. It is important because it helps us to calculate the amount of energy required.

What is energy?

Energy is defined as the capacity to exert a force causing the displacement of an item, which is the ability to do work.

There are mainly two types of energy.

Potential energy - It is defined as the energy that an object retains as a result of its position in relation to other objects, internal tensions, electric charge, or other elements.Kinetic energy - It is defined as a type of energy that a particle or an object has as a result of its motion.

Thus, the meaning of E = MC² is a energy. It is important because it helps us to calculate the amount of energy required.

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a tsunami question 1 options: a) is a special kind of tidal wave caused by the gravitational attraction of the sun not the moon. b) can get big but never bigger than 30 feet high. c) is dangerous near its source but dies out within about 200 miles. d) may be just a broad, gentle swelling out at sea but grows as it approaches shore.

Answers

A tsunami may begin as a broad, gradual swelling at sea but grows closer to land.

The tsunami is what?

Ocean waves called tsunamis are caused by: large earthquakes that take place near or beneath the ocean. lava outbursts. landslides underwater. Onshore landslides that release a lot of debris into the water

What is a landslide catastrophe?

Landslides happen when sloped ground becomes unstable. Earth, rocks, mud, and any other debris that may be trapped in its wake can all be found in the unstable terrain that collapses and pours down the side of a hill or mountain. Landslides can cause significant harm if they happen close to populated areas.

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A cheetah can run at a maximum speed 105 km/h and a gazelle can run at a maxi- mum speed of 73.5 km/h. if both animals are running at full speed, with the gazelle 99 m ahead, how long before the cheetah catches its prey?

Answers

If both animals are running at full speed, with the gazelle 99 m ahead, cheetah will catch its prey after 331 m

v = d / t

v = Velocity

d = Distance

t = Time

Let the distance covered by the gazelle be x.

For cheetah,

v = 105 km / h

d = ( 99 + x ) m

t = d / v

t = 105 / ( 99 + x ) s

For gazelle,

v = 73.5 km / h

d = x m

t = d / v

t = 73.5 / x

The time taken by both cheetah and gazelle will be the same when the cheetah catches its prey.

105 / ( 99 + x ) = 73.5 / x

105 x = 7276.5 + 73.5 x

31.5 x = 7276.5

x = 231 m

Distance travelled by cheetah = ( 99 + x ) m

Distance travelled by cheetah = ( 99 + 231 ) m

Distance travelled by cheetah = 331 m

Therefore, the cheetah will catch its prey after 331 m

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all of its output energy is absorbed in a detector that measures a total energy of 0.53 j over a period of 34 s . how many photons per second are being emitted by the laser?

Answers

Given that detector measures total energy of 0.53 J over a period of 34s. Photons per second emitted by the laser is 7.84 x 10¹⁶ photons/s

Device that emits a beam of coherent light through an optical amplification process is called Laser. Types of lasers include gas lasers, fiber lasers, solid state lasers, dye lasers and diode lasers .

Given total energy = 0.53 J

period = 34 s

As we know Wavelength of the Photon = 989 nm

Energy of  single photon is given by formula,

E= hc/λ

Total energy= (6.626* 10^-34*2.998*10^8)/(989*10^-9)

= 2.01 *10^-19 J

Time period = 34s

Energy absorbed per sec = 0.53/34=  0.0155 J/s

Energy of a  photon= 2.01*10^-19 J

Number of photons emitted per second is = 0.0155/2.01*10^-19

= 7.711* 10^16 J/photon

Number of photons = 7.771 x 10¹⁶ photons/s

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HELP PLEASE ASAP!!!

How many moles are in 7.60g of water, H₂O?​

Answers

Answer: 24

Explanation: because my brain said..

a runner 2.88m/s north she accelerates at 0.350m/s^2 at a -52 degree angle. at the point in the motion when she is running directly east, what is her Delta y ?

Answers

The motion when she is running directly east is Δx = 11.7 and Δy = 15.

To determine the slope of a line select two points on the line and calculate the delta y change in y value to determine the change in elevation. Divide the change in x value by the delta x to determine the change in width. The derivative of y is the square of x with respect to y.

So the derivative of something squared with respect to something is multiplied by the derivative of that thing with respect to x. That's exactly the chain rule. Yes, it means exactly the same. y in Newton notation and dy/dx in Leibniz notation. Newton and Leibniz independently invented calculus at about the same time, so in this case, they used different notations to express the same rate of change.

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its is but also not a math question

Answers

The distance travelled by the car on the first hour of the trip is 80 km, the average speed for the first hour of the trip is 80 kmph and for the first four hours of the trip is 92.5 kmph

v = d / t

v = Velocity

d = Distance

t = Time

For the first one hour,

d = 80 km

t = 1 hr

v = 80 / 1

v = 80 kmph

For the first four hours,

d = 370 km

t = 4 hr

v = 370 / 4

v = 92.5 kmph

Therefore,

Distance travelled in first 1 hour = 80 kmAverage speed in first hour = 80 kmphAverage speed in first four hours = 92.5 kmph

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a driver travels 135 km east in 1.5 h stops for 45mins for lunch and then resumes driving fir the next 2.0h through a displacment of 215 kn east. what is the drivers average velocity?

Answers

A driver travels 135 km east in 1.5 h stops for 45mins for lunch and then resumes driving fir the next 2.0h through a displacement of 215 kn east.  the drivers average velocity is 82.3 km / hr.

given that :

distance travel d1 = 135 km

time taken t1 = 1.5 h

hault time t = 45 mins = 0.75 h

distance travelled d2 = 215 km

time t2 = 2.0 h

Average velocity  =  Total time taken / time

Average velocity = ( 135 km + 215 km ) / ( 1.5 h + 0.75 h + 2.0 h)

                            = 350 km / 4.25

                            = 82.3 km / hr

Thus, A driver travels 135 km east in 1.5 h stops for 45mins for lunch and then resumes driving fir the next 2.0h through a displacement of 215 kn east.  the drivers average velocity is 82.3 km / hr.

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A block is projected up a frictionless inclined plane with initial speed vo = 9.12 m/s.The angle of incline is 0 = 35.0°. (a) How far up the plane does it go? (b) How longdoes it take to get there? (c) What is its speed when it gets back to the bottom?

Answers

Answer:

a) The block goes 7.4 m up the plane

b) It takes 1.62 seconds to get there

c) The speed at the bottom is -9.1 m/s

Explanations:

The initial speed, v₀ = 9.12 m/s

Angle of inclination, θ = 35°

Note that the summation forces on the block as it goes up the inclined plane is 0. That is, ΣF = 0

mgsinθ + ma = 0

mgsinθ = -ma

a = -gsinθ

The acceleration of the block up the plane is:

a = -9.8 sin 35

a = -5.62 m/s²

a) How far up the plane does it go?

Using the equation v² = v₀² + 2as

At the maximum distance up the plane, v = 0

0² = 9.12² + 2(-5.62)s

0 = 83.17 - 11.24s

11.24s = 83.17

s = 83.17/11.24

s = 7.4 m

The block goes 7.4 m up the plane

b) How long does it take to get there?

Using the equation v = v₀ + at

Since we want to calculate the time taken to reach the maximum distance, the speed at this point is 0. v = 0m/s

Substitute a = -5.62, v₀ = 9.12, and v = 0 into v = v₀ + at

0 = 9.12 + (-5.62)t

5.62t = 9.12

t = 9.12 / 5.62

t = 1.62 seconds

c) What is its speed when it gets back to the bottom?

The total time it takes the block to go up and down the plane = 2(1.62)

The total time it takes the block to go up and down the plane = 3.24 s

To calculate the speed of the block when it gets back to the bottom, use the equation v = v₀ + at

v = 9.12 + (-5.62)(3.24)

v = 9.12 - 18.21

v = -9.1 m/s

a soccer ball is released from rest at the top of a grassy incline. after 7.9 seconds, the ball travels 44 meters and 1.0 s after this, the ball reaches the bottom of the incline. what was the magnitude of the ball's acceleration, assume it to be constant?

Answers

Due to velocity being 0

For distance, acceleration, and time, we may apply a straightforward equation.

d = 0.5*a*t^2

D and T are known.

calculate a

2*d/t^2 = a

thus entering the values

a = 2*47/6.2^2

a = 2.45 m/s^2

This is certain.

Second, if it reaches the inclination 1 second after 6.2 seconds, how long did it take overall?

t = 6.2+1 = 7.2 seconds

Possibly, although it might be asking the distance, that is the response to B).

d = 0.5*2.45*7.2^2

= 63.5 m

Magnitude is simply defined as "distance or quantity." It displays an object's size or motion in either an absolute or relative sense. It is a means of describing the size or breadth of something.

An object is considered to have been accelerated if its velocity changes. An object's velocity may alter depending on whether it is going more quickly, more slowly, or in a different direction.

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A boy throws a tennis ball 90 degrees from the horizontal with initial velocity of 2.2 m/s. Find the maximum height of the ball.

Answers

Answer:

Explanation:

Given:

α = 90°

V₀ = 2.2 m/s

__________

H - ?

H = V₀² / (2*g)   =  2.2² / (2*10) ≈ 0.24 m

The maximum height  obtained by the ball is 24 cm.

What is velocity?

The pace at which an object's position changes in relation to a frame of reference and time is what is meant by velocity. Since it is a vector quantity, the definition of velocity requires both magnitude (speed) and direction. Its SI unit is the meter per second (m/s).

Given parameters:

Initial velocity of the tennis ball, u = 2.2 m/s.

And the ball is thrown at  90 degrees from the horizontal .

So, acceleration due to gravity acts on the ball in opposite direction of motion and value of it is 9.8 m/s².

At maximum height H; final velocity (v) is zero.

Using v² = u² - 2as we get,

0² = 2.2² - 2×9.8×H

⇒ H = 2.2²/(2×9.8)

⇒ H = 0.24 m.= 24 cm.

Hence, the maximum height of the ball is 24 cm.

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a 1000w electric motor lifts a 100 kg safe at constant velocity. the vertical distance through which the motor can raise the safe in 10s is most nearly

Answers

The vertical distance through which the motor can raise the safe in 10 s is most nearly 10.2 m

How do I determine the vertical distance?

We'll begin by obtainig the energy. This can be obtained as follow:

Power (P) = 1000 WTime (t) = 10 secondsEnergy (E) = ?

Power (P) = Energy (E) / time (t)

Cross multiply

Energy = Power × time

Energy = 1000 × 10

Energy = 10000 J

Finally, we shall determine the vertical distance. Details below:

Energy = 10000 JMass (m) = 100 KgAcceleration due to gravity (g) = 9.8 m/s² Vertical distance (h) =?

E = mgh

10000 = 100 × 9.8 × h

10000 = 980 × h

Divide both sides by 980

h = 10000 / 980

h = 10.2 m

Thus, the vertical distance is 10.2 m

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You place a box weighing 307.4 N on an inclined plane that makes a 44◦ angle with the horizontal.

Answers

The vertical component of the box's weight is 221.1 N.

What is the vertical component's of the box weight?

The vertical component of the box's weight is the weight of the box acting along the vertical direction of the inclined plane.

Mathematically, the formula for calculating the vertical component of the box's weight is given as;

Wn = mg cosθ

where;

m is mass of the boxθ is angle of inclination of the planeg is acceleration due to gravity

Wn = W cosθ

where;

W is weight of the box

Wn = 307.4 N x cos(44)

Wn = 221.1 N

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The complete question is below;

You place a box weighing 307.4 N on an inclined plane that makes a 44◦ angle with the horizontal. Find the vertical component of the box's weight.

What is the angle sum of a 19 sided regular polygon

Answers

A regular polygon's interior angles add up to 3060° of a 19 sided polygons.

What is polygon's?

Polygons are defined as a flat shape surrounded by sides, or line segments.

It can be defined as a plane figure whose description is given by a closed polygonal chain made up of a finite number of straight line segments.

It can also be defined as any closed curve made up of a number of connected line segments that do not cross one another.

Sum of interior angle = (p - 2) x 180°

Where p = 19

Sum of interior angle = (19 - 2) x 180°

                                   = 17 x 180°

                                   = 3060°

Thus, a regular polygon's interior angles add up to 3060° of a 19 sided polygons.  

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what is a way for scientists to find out about the internal parts of life science specimens

Answers

Scientists find out about the internal parts of life science specimen by a method called fixation and the examination of sample under microscope.

Specimen is the whole or a part of an organism, plant or rock collected and preserved as an example of its class and species. It is further used to study the properties of the whole population of the species.

Specimen is collected by withdrawing blood, collecting urine, or swabs from mucosal surfaces. Specimen collection is performed using aseptic techniques to  avoid contamination from bacteria or other bodily fluids.

After the liquid is added to the slide, a coverslip is placed on top and then the specimen becomes ready for examination under the microscope. Another method of preparing specimens for light microscopy is “fixing” that refers to the process of attaching cells to a slide.

There are 5 steps for the preparation of samples:

Fixation is done immediately after the removal of the sample that is to to be observed.

Embedding is done by fixation in a fixative solution.

Sectioning is carried out using microtomy

Staining and  also immunolabeling

Finally mounting.

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What happens to the lost energy in a food web

Answers

Answer: energy loss

Explanation: the rest of the energy passes out of the food chain in a number of ways it is used as heat energy it is used for life processes movement faeces and remains are passed to decomposers

Advantages to using natural gas instead of petroleum or coal for energy

Answers

Because using natural gas is less polluting than petroleum or coal.

Natural Gas is a cleaner fuel than these. Natural gas emits a third less carbon dioxide than coal and emits half less than oil when used for different purposes.
The benefits of using natural gases are:

1. Domestic availability

2. relatively low cost
3. burns efficiently

4. reliable

5. relatively safe

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saturn is an average distance of 1.4×109 km from the sun. estimate the length of the saturnian year using the fact that the earth is 1.50×108km from the sun on the average.

Answers

Answer:

Kepler's third law:

P^2 = K R^3  the period squared is proportional to the cube of the radius

Ps^2 = K Rs^3

Pe^2 = K Re^3

Ps^2 / Pe^2 = Rs^3 / Re^3        dividing equations

Ps = (Rs / Re)^3/2 * Pe

Ps = (1.4E9 / 1.5E8)3/2 * 1 yr

Ps = 28.5 yrs

(Actual = 10759 da / 365.25 da = 29.5)

an object of mass m is moving with velocity v. what will happen to its momentum if v doubles? final momentum

Answers

The final momentum will be doubled.

What is momentum?

momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude as well as direction. According to Isaac Newton's second law of motion, the force acting on a particle is equal to the time rate of change of momentum. Check out Newton's laws of motion. According to Newton's second law, if a particle is subjected to a constant force for a specific amount of time, the result of the force and time (referred to as the impulse) is equivalent to the change in momentum. On the other hand, a particle's momentum represents the length of time needed for a consistent force to bring it to rest.

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What is the wavelength in picometers of light with a frequency of 9. 3 × 10^18 hz?.

Answers

The wave length in picometers for above problem was 32pm

What is wavelength?

Have you ever given any thought to why it is possible for humans to perceive colour? The explanation is that different light wavelengths of electromagnetic radiation are what give colours their distinct appearance. The visible portion of the electromagnetic spectrum is also known as visible light. These colours also come in a variety of wavelengths. Learn more about wavelength and visible light's wavelength in this article. The distance between the two crests or troughs of the light wave is known as the wavelength of light. Using the Greek letter lambda (λ), it is identified. As a result, wavelength refers to the separation between one wave's crest or trough and the following wave.

v=c/λ

v: 9.3 × 10^18 Hz c: 3.00*10^8 λ:

9.3 × 10^18 Hz

λ = 3.0010^8 m/s /9.3× 10^18

The calculated wavelength is in unit of meter. use the relationship between meter and nanometer to convert to the correct units.

= 32 nm

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The table shows the values of two quantities for an astronaut on Earth and Venus.
Astronaut's Details
Venus
Quantity A 80 units
80 units
Quantity B 784 units 709.6 units
Earth
Which of the following names the quantity and correctly explains why that represents the astronaut's weight?
O Quantity A, because it remains the same throughout
O Quantity B, because it is independent of other quantities
O Quantity B, because it changes with gravitational strength
O Quantity A, because it measures the force acting on the astronaut

Answers

The correct statement is - Quantity B, because it changes with gravitational strength.

Quantity B is Weight

Quantity A is the Mass - because it remains constant throughout.

What is Weight and Mass?Weight represents the amount of gravity exerted on a person's body. Given that weight is a force, its SI unit is also a force; hence, the SI unit of weight is the Newton (N). Because the earth's shape is not completely spherical but rather an oblate spheroid, someone standing at the equator is farther from the earth's center than someone standing at the north pole. Because the acceleration of gravity is proportional to the square of the distance between two objects, a person at the north pole would feel more weight because he is closer to the earth's center than someone at the equator. Since weight is a force Since it uses the same SI unit as force, the weight SI unit is the Newton (N).The amount of matter that makes up an object is measured in terms of mass, whereas the gravitational pull of an object is measured in terms of weight.

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