What is in the universe

True or False. If you kick a soccer ball and there are no forces like friction acting on it will it keep moving?

Was ruthersfords model of an atom incorrect or incomplete

A pendulum swings in an arc in which each successive swing is 40% as long as the previous swing. if the first swing covers an arc 75 meters long, what is the total distance the pendulum will swing before coming to rest?

A book weighing 3 N is lifted 2 meters. How much work was done?

Jeremie ran around the track at the ymca for 2 hours. when he was done he figured that he had traveled 20 kilometers. what was his speed? what was his velocity

When generators are spun by turbines, they a. Produce nuclear energy. B. Store potential energy. C. Produce electricity. D. Burn fossil fuels.

How could gravitational potential energy be useful

A negatively charged rod is brought near a neutral metal sphere. Which of the following is true? A negatively charged rod is brought near a neutral metal sphere. Which of the following is true? There is no electric force between the rod and sphere.

The imaginary line from the tip of the football to the football to the sideline is called

A car starting from a standstill accelerates at a rate of 4 meters per second squared. how far, in kilometers, will the car travel in 20 seconds A. 0.8km B. 800km C. 40km D. 1,600km