Q. An ice cube of mass ma and specific heat Ci is initially at temperature T1, where T1 is less than 273K. If L is the latent heat of fusion of water, and the specific heat of water is Cw, how much energy is required to convert the ice cube to water at temperature T2, where 273K is less than T2 which is less than 373?
Q. A 4 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.8 m/s2, find the force exerted by the rope on the bucket of water.