Select the correct answer.
How does emergency contraception reduce the risk of pregnancy?
OA. It stops the release of eggs from the ovaries.
OB. It restricts the movement of sperm.
OC.
It destroys the fertiliazed egg.

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.