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vredina [299]
2 years ago
13

How much work was done on a 45 kg weight when lifted 1.4 meters in the air?

Physics
1 answer:
BabaBlast [244]2 years ago
8 0

Explanation:

w = f x d

45 x 1.4 = 630j

to get newton's do 45 x gravitation field strength

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Answer: The answer is option A.

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The New England Merchants Bank Building in Boston is 152 mm high. On windy days it sways with a frequency of 0.20 HzHz , and the
kkurt [141]

Answer:

The total distance, side to side, that the top of the building moves during such an oscillation = 31 cm

Explanation:

Let the total side to side motion be 2A. Where A is maximum acceleration.

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A = α(max) / [(2πf)^(2)]

So 2A = 2[α(max) / [(2πf)^(2)] ]

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3 0
3 years ago
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6 0
2 years ago
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3 0
3 years ago
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