A ball of mass 0.05 kg strikes a smooth wall normally four times in 2 second with a velocity of 10m/s. Each time the ball rebounds with the same speeds of 10m/s. Calculate the average force on the wall

A moving object is in equilibrium. Which best describes the motion of the object if no forces change? It will change directions. It will slow down and stop. It will maintain its state of motion. It will speed up and then slow down.

Matter moves up & down when the energy moves from left to right. T OR F

Water has the highest heat capacity of all solids and liquids. True or False

The part of an atom that is mostly empty is the

Which is the safest place to be during a thunderstorm? A[A playground] B[A field] C[A tree] D[A car]

Theories and Laws. • How are they alike? • How are they different? • Can you explain why scientific theories will change over time? • Give an example of a scientific theory that has changed.

If the x-component of a force vector is 5.17 newtons and its y-component is 8.80 newtons, then what is its magnitude?

Scientific theories have strod the test of time and will not change

An 8 kilogram bowling ball is rolling in a straight line toward you. if its momentum is 16 kg * m/s, how fast is it traveling?

Explain why a moving object can be in equilibrium