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Lady bird [3.3K]
2 years ago
7

1. A student moves a box of books down the hall by pulling on a rope attached to the box. The student

Physics
1 answer:
Lelechka [254]2 years ago
5 0

Answer:

the value of the uk is 400kg

Explanation:

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Answer:

a). 53.78 m/s

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Explanation:

See attachment for calculation

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Explanation:

Unclear question. The clear rendering reads;

"Into a U-tube containing mercury, pour on the other side sulfuric acid of density 1.84 and on the other side alcohol of density 0.8 so that the levels are in the same horizontal plane. The height of the acid above the mercury being 24 cm. What is the height of the bar and what variation of the level of the acid, when the mercury density is 13.6?

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Explanation:

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Force=rate of change of momentum

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