Something that makes objects start moving, stop moving, slow down or change direction is a

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

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

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current