The earth has a mass of 5.98x10^24. The sun has a mass 1.989 × 10^30 kg. If the center of the earth and the center of the sun are 1.5×10^11 m. What is the force of gravity between them?

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?