Two positively charged particles are 1.5 m apart. The magnitude of the charge of one particle is 3 C, and the magnitude of the other charge is half that. What is the strength of the force between the two charges? 1.798 N
-1.798 X 10^10 N
1.798 X 10^10 N
2 N

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Most short-period comets do not have randomly oriented orbits because

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.