A cylindrical tank has a height 8 m and a radius 2 m. Suppose the water tank is halffull of water. Determine the work required to empty the tank by pumping the water to the top of the tank. Use 1000 kg/m3 for the density of water and 9.8 m/s2 for the acceleration due to gravity.

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

The necleus of an atom is made up of what subatomic particles?

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.