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gogolik [260]
3 years ago
5

Assume that a person bouncing a ball represents a closed system. Which statement best describes how the amounts of the ball's po

tential and kinetic energy change? O A. The ball's potential energy decreases as it rises and its kinetic energy increases. B. Both the kinetic and potential energy of the ball increase. O C. The ball's kinetic energy increases as it falls and its potential energy decreases. O D. Both the kinetic and potential energy of the ball decrease.​
Physics
1 answer:
Masja [62]3 years ago
6 0

Answer:

I believe the answer is <em>C.</em>

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The net electric flux through a cubic box with sides that are 22.0 cm long is 4950 N⋅m2/C . What charge is enclosed by the box?
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Answer:

43.83 nC

Explanation:

We know Q = ε₀Ψ where Q = charge enclosed by the cubic box,  ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m and Ψ = net electric flux through cubic box = 4950 Nm²/C

So, substituting the values of the variables into the equation, we have

Q = ε₀Ψ

= 8.854 × 10⁻¹² F/m × 4950 Nm²/C

= 43827.3 × 10⁻¹² C = 4.38273 × 10⁻⁸ C

= 43.8273 × 10⁻⁹ C

= 43.8273 nC

≅ 43.83 nC

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4 years ago
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What is the density of a block of marble that
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Explanation:

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I hope it helped U

stay safe stay happy

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