Physic What is the electric force between the ball and the comb? A small ball has a charge of –8.5 x 10-6 C.

A comb with a charge of 6.2 x 10-6 C is placed 0.10 m away from the ball.

What is the electric force between the ball and the comb?

3.1 N

52 N

1.3 N

47 N

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.

What is a subatomic particle with a negative charge and very little mass?