20 POINTS TRUE OR FALSE:
If you are wearing a seat belt in a car crash, the first law of motion is used by the seat belt to keep you safe.
A) TRUE
B) FALSE

What happens when a rubber rod is rubbed with a piece of fur?

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?

Mr. polifka does a demonstration in science class. he holds an unlit match six inches above a candle flame. after a while, the match bursts into flame.