Anegative charge of -0.550 μc exerts an upward 0.900-n force on an unknown charge that is located 0.300 m directly below the first charge. part a what is the value of the unknown charge (magnitude and sign)? express your answer with the appropriate units.

Explanation:

F = Force between charge = 0.9 N

= Charge on particle = -0.55 μC

k = Coulomb constant =

Electric Force is given by

As there is a force of attraction the other charge will have the opposite sign

The magnitude and sign of the charge is

scientific laws are the result of testing theories and proving them to be facts.

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