Two positive point charges Q and 2Q are separated by a distance R. If the charge Q experiences a force of magnitude F when the separation is R, what is the magnitude of the force on the charge 2Q when the separation is 2R

Explanation:

According to Coulomb's law, the magnitude of each of the electric forces experiences by the two point charges is directly proportional to the product of the magnitude of both charges () and inversely proportional to the square of the distance(R) that separates them:

We have

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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its c i just checked it