una esfera de 0.35kg en el extremo de una cuerda de 3.80m de largo se suelta cuando forma un algulo de 45° respecto a la vertical. calcula la velocidad de la esfera en el punto mas bajo

The amount of potential energy possessed by an elevated object is equal to what?

Which sections of the heating curve illustrate this process?

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)