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Harrizon [31]
3 years ago
5

If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result?

Physics
1 answer:
faltersainse [42]3 years ago
7 0
Kinetic energy will go down accordingly (if no external force)
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Answer:

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Explanation:

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3 years ago
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Consider a roller coaster begins 15m above the ground. If the cart has a mass of 75kg, what is the velocity of the cart halfway
SashulF [63]

Answer:

v = 12.12 m/s

Explanation:

Given that,

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mgh=\dfrac{1}{2}mv^2\\\\v=\sqrt{2gh} \\\\v=\sqrt{2\times 9.8\times 7.5} \\\\v=12.12\ m/s

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7 0
3 years ago
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LenKa [72]

Answer:

Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal. Sound energy is a form of mechanical energy.

Explanation:

5 0
3 years ago
A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends 30 psi, but it's been a
Rama09 [41]

Answer:

21 psi

Explanation:

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saul85 [17]
The answer is B) resonance
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3 years ago
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