Two True/False (T/F) statements are in bold font. Select T or F in the same order as the statements. (1) A plastic rod (not a conductor) may have a net charge of 5.5e. (2) A solid conducting sphere has a net charge of 3C. All charges remain at rest. The electric field at a point midway between surface and center must be zero.

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.

d) physical means can be used to separate the components of air.

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