A system is acted upon by two forces N, and N. What is the net force acting on the system?

Aphysical change is a change in the size, shape,, or stafe of matter true or false

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

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