Here is the relationship :
Pressure = Force / Area
hope it helps you
The force between the charges is 60.47N
<u>Explanation:</u>
Given:
Charge, q₁ = 2.5 X 10⁻⁶ C
q₂ = 4.3 X 10⁻⁶ C
Distance, r = 0.04m
Force, F = ?
According to Coulomb's law:

where,
k = Coulomb's constant
and the value of k is 9 X 10⁹ Nm²/C²
On substituting the value we get:

Therefore, the force between the charges is 60.47N
Answer:
The answer is below
Explanation:
Using Coulomb's law of electric field which is:


(150 meters) / (18 seconds) = 8.33 meters per second