which two ratios represent quantites that are proportioanl 45/18 and 35/14 or 3/4 and 5/12 or 32/20/ and 22/10 or 7/5 and 14/9

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

Which two objects have the greatest gravitational force acting between them

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?