Suppose the gravitational force between two spheres is 70 n. if the distance between the spheres is halved, what is the force between the masses?

When do you use specific heat in your daily life?

1. Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find the angle their resultant force makes with the force of 14 lb. 2. A velocity of 30 mph is resolved into two components, each of which makes an angle of 45 with it.

If an atom has 3 protons, 3 neutrons, and 2 electrons, what is the electrical charge of the atom?

A small glass bead has been charged to 7.6 nC. What is the magnitude of the electric field 2.0 cm from the center of the bead? (k = 1/4πε 0 = 8.99 * 109 N · m2/C2)

In a collusion, a 15 kg object moving with a velocity of 3 m/s transfers all of its momentum to a 5 kg object. what would be the velocity of the 5 kg object after the collision

One problem for humans living in outer space is that they are apparently weightless. One way around this problem is to design a space station that spins about its center at a constant rate.

Three asteroids have exactly the same amount of mass. The distance from asteroid A to asteroid B is 300 km, the distance from asteroid B to C is 400 km, and the distance from C to A is 100 km.

what determines the quality of a conductor

If the mass of an object increases, predict what will happen to the coefficient of sliding friction.

2x-4≤12 A x≤8 B x≤12 C x≤16