An elephant, mass 1100 kg, stands on the ground above a point charge with +3 c of charge that has been buried 0.8 m beneath the ground. how much charge would you need to put on the elephant in order to make it float?

Explanation:

k = Coulomb constant =

g = Acceleration due to gravity = 9.81 m/s²

r = Distance between charge = 0.8 m

m = Mass of elephant = 1100 kg

= Mass on first charge = 3 C

The electrostatic force will balance the weight of the elephant as the energy in the system is conserved

The charge on the other particle is

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

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