5. If an object starts at x =+3 m and travels at + 4.5 m/s, predict its location at t= 4s.

If a simple machine reduces the strength of a force, what must be increased?

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point