a. James lives close to the sea in Auckland, New Zealand.

Suppose he lifts a book (of mass 0.5 kg) from the floor of his office and puts it on a bookshelf 1 m high, how much work has he done?

For this question you will have to look up the acceleration due to gravity, at sea level in Auckland, on the top of Mt. Everest, and on the moon. Be specific; gravity is different in Auckland than it is in New York, for instance.

b. How much work would James have done if he lived on the top of Mt. Everest?

c. How much work would James have done if he lived on the moon?

d. How much work does James actually do in real life to tidy up his office? (Answer: very little.)