A solid rubber ball of radius 10 cm is submerged to 8.0 m beneath the surface of a lake....

A solid rubber ball of radius 10 cm is submerged to 8.0 m beneath the surface of a lake. (a) If the bulk modulus of the rubber compound is what is the diameter of the ball at that depth? (b) A similar ball of equal radius, but made of thin rubber inflated with air, is also submerged to the s me depth. If the bulk modulus of the air inside the ball under these conditions is , what is the radius of this ball at that depth? (Ignore any effects of temperature.)