If you run up a set of steps quickly compared to walking up the same set of steps slowly. Which requires more WORK
a.) running b.) walking c.) same

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

This is the number of complete movements of a wave per second.

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.