You wish to push a cart across a frictionless surface, so you apply a force of 50 N force for a period of 50.0 seconds. As a result the cart goes from rest to a velocity of 2.3 m/s. What is the
mass? Hint (must find acceleration first.)

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

What happens to an isotope during radioactive decay?

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.)