Acharge of 6.4 × 10–7 c experiences an electric force of 1.8 × 10–1 n. what is the electric field strength?
1.1 × 10–7 n/c
3.6 × 10–6 n/c
8.2 × 100 n/c
2.8 × 105 n/c

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length