Suppose you push a box, which is then slowed to rest by friction. Given displacement = 2m, time = 2.29s, and mass of box = 300 g, find Work done by friction to stop the box and initial kinetic energy

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).

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Smallest intensity of a stimulus that you can detect 50 percent of the time is