What happens to the domains in this iron nail when the south pole of a magnet approaches it from the top?
A. All the arrows align to point down.
B. All the arrows align to point left.
C. All the arrows align to point up.
O D. All the arrows align to point right.

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

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

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.