which term defines the physical influence push ir pull on an object witn mass that tends to change the position of the object

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

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?