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zepelin [54]
3 years ago
12

Jana lifted a 200-newton weight over her head to a distance of 2 meters above the ground. How much work did she do?

Physics
1 answer:
ira [324]3 years ago
4 0
Work = force * distance

force = 200 N
distance = 2m

Work = 200 * 2 = 400 J of work done.
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The human ear canal is about 2.8 cm long. If it is regarded as a tube that is open at one end and closed at the eardrum, what is
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Answer:

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Explanation:

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