If there is a 2kg ball and a 5kg ball with the same kinetic energy which one will be moving faster?

Tim's car breaks down just down the street from his house. he and his friends decide to try to push it to his house. using newton's three laws of motion, explain why this will be difficult.

Bill and Ted are standing on a bridge 40 ft above a river. Bill drops a stone, while Ted decides to throw a stone downward at 10 m/s.

Scientists have learned about the structure of Earth's interior by A) examining deep wells B) using radar C) studying seismic waves D) using sonar

Would a sound wave travel faster in a bedroom or a pool and why?

What causes alternating layers of magnetization run along mid ocean ridges?

What causes an air conditioned to turn on

A turntable is spinning on a frictionless axle when a ball of putty is dropped onto it from above. The putty sticks to the turntable when it lands. Is angular momentum conserved for the turntable and putty (the system) during this process?

The speedof a boat in still water is v. The boat is to make a round-trip ina river whose current travels at speed u.

Why are there so few working wave power stations?

Two abiotic factor that effect an ecosystem are;