Two spherical objects with a mass of 6.22 kg each are placed at a distance of 1.02 m apart. how many electrons need to leave each object so that the net force between them becomes zero?

The number of electrons need to leave each object is

Explanation:

Given that,

Mass of object = 6.22 kg

Distance = 1.02 m

We need to calculate the number of electron

Using formula of electric force

....(I)

We know that,

Put the value of q in equation (I)

.....(II)

Using gravitational force

.....(III)

Equating equation (II) and (III)

....(IV)

Put the value in the equation(IV)

Hence, The number of electrons need to leave each object is

there are no contact forces mentioned on the list of choices that you've provided.