What is the strength of the electric field ep 0.90 mm from a proton?

The electric field strength is inversely related to the square of the distance.so  the strength of the electric field is given by

Here,    is constant depend upon medium and its value is and q is charge and  r is the distance.

Given   and we know the charge of proton, .

Therefore,

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary