Melody always drops her backpack onto the floor when she gets home from school. Thirty minutes later, Melody picks up her backpack and puts it onto her desk to prepare for homework. Which graph correctly shows the change in motion of the backpack?

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.)