Superman is standing 120 m horizontally away from Lois Lane. A villain throws a rock vertically downward
with a speed of 2.8 m/s from 14.0 m directly above
Lois. (a) If Superman is to intervene and catch the rock
just before it hits Lois, what should be his minimum
constant acceleration? (b) How fast will Superman be
traveling when he reaches Lois

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

This is what a calorimeter is used for simpler ex, to measure calories in food.