The superheroine xanaxa, with a mass of 65.9 kg, is in a hair-raising chase after the 76.1-kg arch-villain lexlax. she leaps from the ground to the top of a 183-m-high building, then dives off and comes to rest at the bottom of a 17.9-m-deep excavation, where she finds lexlax and neutralizes him. does all this bring about a net gain or a net loss of gravitational potential energy?
loss or gain?
by how much? answer with a positive number. take g = 9.81 m/s2.
answer j

Label each of the following statements true, false, or uncertain. explain your choice carefully. a. workers benefit equally from the process of creative destruction. b. in the past two decades, the real wages of low-skill u.s. workers have declined relative to the real wages of high-skill workers. c. technological progress leads to a decrease in employment if, and only if, the increase in output is smaller than the increase in productivity. d. the apparent decrease in the natural rate of unemployment in the united states in the second-half of the 1990s can be explained by the fact that productivity growth was unexpectedly high during that period.