Two electrostatic point charges of -13.0 MC and -16,0 4C exert repul- sive forces on each other of 12.5 N. What is the distance between the
two charges?

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)