What’s the velocity of a ball falling with 100 joules of kinetic energy and a mass of 2 kilograms? Use the formula, .
2 answers:
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B. Exactly the same as the electric force of the electron on the proton.
<u>Explanation:</u>
Even if the mass of proton is increased or decreased, the force between electron and proton will remain the same because force is dependent on the charge of the object and distance between them. The force between the charges is independent of their masses. So, even if the mass of a proton is 1833 times larger than the mass of an electron, the force between them will be same.
According to Coulomb's law:
where,
F is the force
q₁ and q₂ are the charges
r is the distance between the charges