Does mars has a bulge near its equator ?

Identify the type of synthetic material used in each object

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant