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ruslelena [56]
2 years ago
13

I need to catch up on late work

Physics
1 answer:
satela [25.4K]2 years ago
6 0
I can’t really see the picture
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GarryVolchara [31]

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3 years ago
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Pls help on this one
lidiya [134]

Answer:

D

Explanation:

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A ball is released from the top of a hill. How fast is the ball going when it reaches the base of the hill? Approximate g as 10
irina [24]
First I’ll show you this standard derivation using conservation of energy:
Pi=Kf,
mgh = 1/2 m v^2,
V = sqrt(2gh)
P is initial potential energy, K is final kinetic, m is mass of object, h is height from stopping point, v is final velocity.
In this case the height difference for the hill is 2-0.5=1.5 m. Thus the ball is moving at sqrt(2(10)(1.5))=
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2 years ago
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8_murik_8 [283]

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From the equation it can be seen that substance with lowest molar mass has the highest velocity has He is the answer

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As we know that acceleration is directly proportional to force, therefore as the force is doubled, acceleration gets doubled too.

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