A parabolic fit is made to the position of a cart moving up and down a ramp using the data tool. The fit parameters are: A = -2, B = 6, C = -3. What is the cart’s acceleration in m/s2?

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.)