2. You move a 100 1b refrigerator a distance of 2.0 m across the kitchen floor with a pushing force of 100 N. It takes you 15 seconds to do this. a) How much work have you done? (5pt) b) What is your power in Watts? (5pts) 3. Tom Brady of the N.E. Patriots throws a football with a speed of 60 mph = 26.8 m/s. The mass of the football is .43 kg. a) How much work does Brady do in throwing the football? (5pts) b) Assume that in throwing the ball he applies a constant force to the ball over a distance of 1.0 m. Use the answer from part (a) to find the throwing force that Brady applies to the ball. (5pts) 4. Your electric bill for the month is for 900 kWh of energy. How much energy in Joules was used? (5pts)