Which statement best explains the relationship between electric force and the charges on two interacting objects? a. electrical force is directly proportional to the product of the charges on the two objects. b. electrical force is inversely proportional to the product of the charges on the two objects. c. electrical force is inversely proportional to the product of the squares of the charges on the two objects. d. electrical force is directly proportional to the product of the squares of the charges on the two objects.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

How is the gravitational force related to the distance between two objects?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?