A uniform solid brass sphere is rotating with angular speed `omega_0` about a diameter. If its temperature is now increased by `100^@C`, what will be its new angular speed. (given`alpha_B=2.0xx10^-5per^@C`)

A solid cylinder of mass M and radius R rotates about its axis with angular speed omega . Its rotational kinetic energy is

A metallic solid sphere is rotating about its diameter as axes of rotation. If the temperature is increased by 200^(@)C , the percentage increase in its moment of inertia is (Coefficient of linear expansion of the metal =10^(-5)//""^(@)C )

In previous problem, if initially the platform with the child is rotating with an angular speed omega_(1) . If child start walking along its periphery in opposite direction with speed u relative to platform, what will be the new angular speed ofthe platform.

A thin circular right of mass M and radius R is rotating about its axis with an angular speed omega_(0) two particles each of mass m are now attached at diametrically opposite points. Find new angular speed of the ring.

A rigid metallic sphere is spinning about its own axis in the absence of external torque.If the temperature is raised,its volume increases by "9%" .The change in its angular speed is

A solid sphere is rotating about a diameter at an angular velocity omega . If it cools so that its radius reduces to I//n of its original value, its angular velocity becomes

A solid sphere is rotating about its diameter.Due to increase in room temperature its volume increases by 0.5% .If no external torque acts the angular speed of the sphere will increase by nearly (1)/(3)% decrease by nearly (1)/(3)% increase by nearly (1)/(2)% decrease by nearly (2)/(3)%

To increase the length of brass rod by 2% its temperature should increase by (alpha = 0.00002 "^(@)C^(-1))