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Elina [12.6K]
3 years ago
13

How much work is done if a 4500 N piano is lifted 10 m?

Physics
1 answer:
AveGali [126]3 years ago
6 0

Answer:

45000 J

Explanation: multiply the 4500 N by the 10 m

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The water molecules now in your body were once part of a molecular cloud. Only about onemillionth of the mass of a molecular cloud is in the form of water molecules, and the mass density of such a cloud is roughly 2.0×10−21 g/cm^3.

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The volume of cloud that has the same density as the amount of water in our body is 1.4×10²⁵ cm³

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Here, we have mass density of cloud  =  2.0×10⁻²¹ g/cm^3

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Therefore, the volume of cloud that has the same density as the amount of water in our body = 1.4×10²⁵ cm³.

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