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Aleks04 [339]
3 years ago
7

A yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s. A red ball with a mass of 3 kg is rolling across the sam

e floor at 3 m/s. Which ball has greater kinetic energy, and why?
Physics
2 answers:
Darina [25.2K]3 years ago
7 0

Answer:

The red ball has greater kinetic energy because it is moving at the same speed as the yellow ball, which is lighter than the red ball.

Explanation:

Formula for kinetic energy: 1/2mv²

Yellow ball:

= 1/2(2)(3)²

=1/2(2)(9)

= 9J

Red ball:

= 1/2(3)(3)²

=1/2(3)(9)

= 13.5J

kifflom [539]3 years ago
3 0

Answer:

The red ball has greater kinetic energy, because it has a greater mass.

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Constants A capacitor is connected across an ac source that has voltage amplitude 59 0 V and frequency 77 0 Hz Part C What is th
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Answer:

C = 1.77 \times 10^{-4} F

Explanation:

As we know that in AC circuit we have

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here we have

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here we will have

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3 years ago
When only several competitors in an industry maintain most of the sales of those items, it is considered a(n) Industry of Social
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Answer:

Oligopoly

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Explanation:

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