1. Two people lift identical books from the floor to the same table top in different amounts of time. Which of the following statements is true?

a. The amount of work done by both people is the same as are their powers. b. The amount of work done by both people is different but their powers are the same. c. The amount of work done by both people is the same but their powers are different. d. The amount of work done by both people is different as are their powers. 2. A car's engine is rated at 200 h.p. How much energy, in joules, is it able to transform in 10 s? (1.00 h.p. = 746 W) a. 15 b. 37 c. 1.5 x 10^4 d. 1.5 x 10^6 3. A nuclear generating station produces power at 2.2 GW. How many 60-W light bulbs could it supply with energy on a continuous basis? Assume there are no energy losses. a. 3.7 x10^10 b. 3.7 x10^7 c. 3.7 x10^4 d. 3.7 x10^1 4. An electric drill transforms 9.0 102 J of energy in 1.5 s. What power is the drill operating at? a. 6.0 x 10^2 kW b. 60 kW c.1.4x 10^3 W d. 6.0 10^2 W 5. What length of time, measured in minutes, is required for a 800-W electric kettle to transform 7.2 104 J of electrical energy? a. 1.5 b. 0.67 c. 1.9 x 10^4 d. 9.6 10^5 6. How much energy does a 60-W light bulb transform each minute? a. 60 J b. 3.6 x10^3 J c. 60 W d. 3.6 x10^3 W.