As a bug drops vertically from a point meters above a bush to a leaf on the bush, its gravitational potential energy Ug(y) 1. remains constant. 2. increases by the amount of work you would have to do against gravity to carry the bug from the leaf to its original position. 3. increases by the amount of work gravity does on the bug as it drops. 4. decreases by the magnitude of the amount of work gravity does on the bug as it drops.

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

Ahurricane sweeps across the ocean and damages the houses of people living along the coast. which of these does not play any role in this interaction? air water glaciers living things

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?