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castortr0y [4]
3 years ago
15

Which Sentence Describes A Physical Property

Physics
1 answer:
Alina [70]3 years ago
8 0

The answer is (a).

Golf balls have a higher density than water hence sink to the bottom.

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The steam engine of James watt is more efficient than Newcomen ans more suitable for the industrial revolution.

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Lloyd is standing on a scaffolding 12 meters above the ground to clean the windows of a tall building. His bucket, which has a m
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Answer:

U₂ = 20 J

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Given that

H= 12 m

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h= 4 m

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U₁ = m g H

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The potential energy at position 2

U₂ = m g h

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From energy conservation

U₁+KE₁=U₂+KE₂

By putting the values

60 - 20 = KE₂

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By putting the values

40 = 1/2 x 0.5 x v²

160 = v²

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