The ball has joules of potential energy at point b. at position a all of the energy changes to kinetic energy. the velocity of the ball at position a is meters/seconds. assume theres no air resistance. use g=9.8m/s2

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

What can you increase the strength of an electromagnet by

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)