Q3. An aluminium-alloy cylinder of internal diameter 10.000cm and wall thickness 0.50cm is shrunk onto a steel cylinder of external diameter 10.004cm and wall Thickness 0.50cm. If the values of Young's modulus for the alloy and the steel are 70 GN/m² and 200 GN/m", respectively, estimate the circumferential stresses in the cylinders and the radial pressure between the cylinders.

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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.