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kherson [118]
3 years ago
6

A ball is falling after rolling off a tall roof. The ball has

Physics
2 answers:
Rom4ik [11]3 years ago
8 0
C.
Because it’s falling it has acceleration in the y direction. If you have acceleration, you usually also have velocity, and since kinetic energy is KE= Mv^2 you know you have it. It also has potential energy because it has some height to it, and PE= Mgh.
Stella [2.4K]3 years ago
8 0

The ball has both kinetic and potential energy.

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1.94\cdot 10^{20} N

Explanation:

The magnitude of the gravitational force between two objects is given by the equation:

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In this problem, we have:

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Therefore, the gravitational force between them is

F=(6.67\cdot 10^{-11})\frac{(5.98\cdot 10^{24})(7.34\cdot 10^{22})}{(3.88\cdot 10^8)^2}=1.94\cdot 10^{20} N

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