A rock rolls down a steep hill. Its intial velocity is 1 meter per second. By the time it reaches the bottom of the hill 30 seconds later. Its velocity is 7 meters per second. What is the acceleration of the rock

Why does japan have so many volcanoes? •paragraph

Why isn't solar energy usually the only power source for a region

Where does the energy of a nuclear power plant come from?

Recall that there is a uniform electric field inside a capacitor. Recall also that in general, LaTeX: V=-/int{/vec{E}/cdot/vec{dl}}V = - ∫ E → ⋅ d l →.

Car batteries are often rated in ampere-hours. Does this information designate the amount of (a) current, (b) power, (c) energy, (d) charge, or (e) potential the battery can supply?

A ___ is awarded to the opposing team when that team violently or dangerously charges a opponent. (in soccer) A) Goalie kick B) Indirect kick C) Direct kick D) Throw in

Which has greater potential energy, a book on the top shelf of a bookcase or a book on the bottom shelf? Why?

Fusion occurs with atoms of elements less massive than a. iron. b. helium. c. calcium. d. uranium.

Which describes what happens when fuel is ignited in a heat engine? A. Chemical energy is converted into thermal energy B. Thermal energy is converted into solar energy. C. Solar energy is converted into chemical energy D.

What happens during the intake and compression strokes of a four stroke engine?