Ablock of ice (m = 6 kg) at a temperature of t1 = 0 degrees c is placed out in the sun until it melts, and the temperature of the resulting water rises to t2 = 29 degrees c. recall that the specific heat of water is c = 4186 j/(kg⋅k), and its latent heat of fusion is lf = 3.34 × 105 j/kg.

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.