Mr. Johnson is late to teach his 1st period physical science class. In his hurry, he puts his coffee on top of his car but forgets it and accelerates quickly out into the street. As the accelerates forward he realizes his mistake when:

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

What is the speed vfinal of the electron when it is 10.0 cm from charge 1?

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.