A big lump of meat of mass 5kg is hung from a spring balance in an elevator, find the reading of the balance
(i) if the elevator is moving with a steady speed
(ii) the elevator is moving upwards with acceleration of 0.2 m/s^2
(g=10m/s^2)

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

It may possibly be c i think |-/

Transfer of electrons. hope it !