When an earthquake occurs, energy radiates in all directions from its source, which is called the _

Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.