Two objects at different temperature are in contact which of the following happens to their thermal energy? a) their thermal energies remain the same
b) thermal energy passes from the cooler object tot be warmer object
c) thermal energy passes from the warmer object to the cooler object
d) thermal energy passes back and forth equally between the two objects

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

not too sure thinking all accelerations are pointed down