A 21 kg child on a 5.9 kg bike is riding with a velocity of 4.5 m/s. What is the momentum of the child?

What happens when a current moves through a wire and the wire is placed near a magnet

A 8kg cat is running 4 m/s. How much kinetic energy does it have?

What are variables and why are they important?

On a riding lawn mower how long does it take to cut 5 acres

Roads often have to be repaved because they crack over time. Sometimes this cracking is due to the fact that the roads (as well as other objects) have a tendency to expand when heated and contract when cooled.

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him