On a snowy morning, a fast car skids along the road and runs into the back end of a truck. The bumpers of the car and truck stick together in the collision and the car and truck slide forward slowly after they hit. Describe this collision by explaining the following: What type of collision is this (elastic or inelastic) and how do you know?
What happens to the momentum of each vehicle in this collision?
Does this collision obey the law of conservation of momentum?

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.