100kg quarterback is travelling at 3m/s and is stopped by a tackler in 2s.

a. calculate the average force exerted by the tackler?

Two force of 126N and 215N act on an object, calculate the magnitude and direction

How kind of cells have cell wall

What is the distance a bullet will travel when launched at 166 meters per second for 5.75seconds?

Which of the following is an example of radiation? a. A metal spoon becomes warm after being set in a pot of boiling water. b. Warm water rises because it is less dense than cool water. c.

Why does a black hole have a stronger gravitational pull than the star that collapse to form it?

What is the oxidation state of a hydrogen atom bound to an iron atom.?

What evidence can you present for the possibility of time travel?

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

What was the change in internal energy (chemical energy plus thermal energy) of the person pulling the block?

One of the longer sides of a kite is 39 feet. one of the shorter sides is 25 feet. half the length of the shorter diagonal is 15 feet. what is the area of the kite?