Which of the following is an example of an electromagnetic wave?
a. ripples on a lake
b. the honking of a car horn
c. the light from a neon sign
d. aftershocks from an earthquake

Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?