The essential difference between electric force and gravitational force is which? _electric force is both attractive and repulsive and gravitational force is attractive

_electric force is repulsive and gravitational force is attractive

_electric force is both attractive and repulsive and gravitational force is repulsive

What will a positive and a negative charge do if they are separated from each other?

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.

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.