A solid aluminum shaft of 120 mm diameter fits concentrically in a hollow steel tube. Determine the minimum internal diameter in mm of the steel tube so that no contact pressure exist when the aluminum shaft carries an axial compressive load of 546 KN. Assume Poisson's ratio = 1/3 and a modulus of elasticity of the aluminum rod is 75 GPa. Use 4 decimal places.

Q: H h d

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.