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Jobisdone [24]
3 years ago
14

A student wanted to check her idea that a planet that is closer to the Sun receives more of the Sun’s energy than a planet that

is farther away from the Sun. She placed a radiometer 50 cm
away from a clamp light with a 150 –W lightbulb


To check her idea, she also needed to set up another clamp light and radiometer.

Which of the following setups would she use?


A. a clamp light with a 50-W lightbulb placed 25 cm from the radiometer

B. a clamp light with a 50-W lightbulb placed 50 cm from the radiometer

C. a clamp light with a 150-W lightbulb placed 25 cm from the radiometer

D. a clamp light with a 150-W lightbulb placed 50 cm from the radiometer
Physics
2 answers:
goblinko [34]3 years ago
3 0

Answer:

C. a clamp light with a 150-W lightbulb placed 25 cm from the radiometer

Explanation:

because the temperature has to be set, meaning it can't change, and it should be a different distance away than the first one.

Hope this helps! Stay safe!

Greeley [361]3 years ago
3 0
C. A clamp light with a 150-w light bulb
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Gravity is pushing you down on the earth while the friction from the ground is pushing you up. Those are the two frictions you must overcome when walking.






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3 0
3 years ago
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A 4-kilogram ball moving at 8 m/sec to the right collides with a 1-kilogram ball at rest. After the collision,
elena-14-01-66 [18.8K]
Conservation of momentum: total momentum before = total momentum after

Momentum = mass x velocity

So before the collision:
4kg x 8m/s = 32
1kg x 0m/s = 0
32+0=32

Therefore after the collision
4kg x 4.8m/s = 19.2
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4 0
3 years ago
An observer standing near a window 5 m high observe that an object falling downwards is passing across the window in 0.5 s. Find
Valentin [98]

Answer:

Explanation:

An object in free fall, NOT experiencing parabolic motion, has an equation of

h(t)=\frac{1}{2} gt^2+h_0 which says:

The height of an object with respect to time in seconds is equal to the pull of gravity times time-squared plus the height from which it was dropped. Normally we use -9.8 for gravity but you said to use 10, so be it.

For us, h(t) is 5 because we are looking for the height of the window when the object is 5 m off the ground at .5 seconds;

g = 10 m/s/s, and

t = .5sec

5=\frac{1}{2}(-10)(.5)^2+h and

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5 = -1.25 + h so

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That's how high the window is above the ground.

8 0
2 years ago
How many seconds will it take for a satellite to travel 450,000 m at a rate of 120 m/s?
V125BC [204]
3750 seconds to travel that far
5 0
3 years ago
In avarage,How many times do a child breathe in a
ollegr [7]
On an approximate scale, A child breaths 20 times a minute as compared to only 12 to 16 in resting phase of an Adult.

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In short, Your Answer would be: 28,800

Hope this helps!
5 0
3 years ago
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