A5 kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as shown in the figure. the scale of the figure's vertical axis is set by fs = 45 n. how much work is done by the force as the block moves from the origin to x = 8.0 m?

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit