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A unifom cylinder of steel of mass M rad...

A unifom cylinder of steel of mass M radius R is placed on frictionless bearings and sct to rotate about its axis with angular velocity `omega_(0)` After the cylinder has reached the specified state of rotation, it is heated from temperature `T_(0)to (T_(0)+DeltaT)` without any mechanical contact. If (DeltaI)/I is the fractional change in moment of inertia of the cylinder and `(Deltaomega)/(omega_(0))` be the fractional change in the angular velocity of the cylinder and alpha be the coefficient of linear expansion, then

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