It is known that a cubical object made of cast aluminum 0.213 m on a side contains a hollow cavity also in the shape of a cube but of unknown dimensions. If the mass of the object is 22.8 kg, determine the length of each side of the interior cubical cavity. The density of aluminum is 2.70  103 kg/m3.

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A: as per our guidelines, we can answer only first question . please resubmit rest question for answer.

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Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.