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Phantasy [73]
3 years ago
5

A flat metal washer (a circular plate with a circular hole cut out of it) is heated. Does the hole get smaller, larger, or remai

n the same size? Explain.
Physics
1 answer:
Pepsi [2]3 years ago
6 0
It gets larger since the heat is expanding it outward
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What is the kinetic energy of a an 80kg football player running at 8 m/s?
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In the question it is already given that the football player is 80 kg.
Then the mass of the football player = 80 kg
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Now we have to put the known data in this equation to find the actual velocity of the footballer.
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Kinetic Energy of the footballer = 0.5 * 80 * (8 * 8)
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