The function of a circuit breaker is to
stop a current that is flowing too fast
reduce a current that is flowing too fast
speed up a current that is flowing too slow
stop a current that is flowing too slow

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.