A circular swimming pool has a diameter of 10 meters. The sides are 4 meters high. And, the depth of the water is 3.5 meters. How much work is required to pump all of the water over the side? Recall that water weighs 9810 N/m3

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?

If the new moon happens on january 15th, what shape will it be on february 6th?

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?