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jok3333 [9.3K]
3 years ago
6

When only ________ acts on an object's mechanical energy is conserved.

Physics
2 answers:
murzikaleks [220]3 years ago
8 0

When only ________ acts on an object's mechanical energy is conserved.

<u>Answer</u><u>:</u>

Momentum

lorasvet [3.4K]3 years ago
7 0

Answer:

Gravity

Explanation:

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Answer:

K/2

Explanation:

The law of conservation of mechanical energy states that the sum of the kinetic and potential energies is a constant at any point.

At maximum height, the glove has purely potential energy but at the bottom, it has purely kinetic energy.

The potential energy at the top = kinetic energy at the bottom. The potential energy is given by

PE = mgh

At half height, this potential energy is

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At this height, PE + KE = Constant = KE at bottom or PE at maximum height.

mgh = \frac{1}{2}mgh +KE

KE = \frac{1}{2}mgh = K/2

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Hydrogen fuel cells is the answer
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