Static electricity is the .

unlike charges attracting each other

electric current in a closed circuit

build up of electric charges on the surface of a material

complete path in which electricity flows

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

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.)