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SIZIF [17.4K]
3 years ago
6

PZZZZZZZ just Answer this question 20 POINT What happens to the total energy as the skater moves down and up the U-shaped ramp?

Chemistry
1 answer:
Fudgin [204]3 years ago
4 0

Answer:

The total energy stays the same.

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Calculate the pH of a solution that [H3O4] of 7.22x10-7M
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Which of the following answers is true for the following statement?
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A ball is dropped from a height of 1.20 m and hits the floor. The ball compresses and then reforms to spring upwards from the fl
diamong [38]

Answer:

\large \boxed{\text{98 m$\cdot$s}^{-2}}

Explanation:

The formula for the velocity of the ball is

v = \sqrt{2gh}

1. Velocity at time of impact

v = -\sqrt{2 \times 9.807 \times 1.20} = -\sqrt{23.54} = -\textbf{4.85 m/s}

2. Velocity on rebound

The ball has enough upward velocity to reach a height of 0.86 m.

v = \sqrt{2 \times 9.807 \times 0.86} = \sqrt{16.87} =\textbf{4.11 m/s}

3. Acceleration

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4 years ago
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