If the distance between two charges is increased to three times the original distance, how will the electrical force between the charges compare with the original force? it will increase to three times the original force. it will increase to nine times the original force. it will decrease to one-third the original force. it will decrease to one-ninth the original force.

It will decrease to one-ninth the original force.

Explanation: Let the two charges be q and q' and distance between them be d. The electric force between the charges would be

when the distance between the charges is increases by the three times, the force would reduce by nine times as the electric force between two charges is inversely proportional to square of the distance between them.

Thus, the correct option is it will decrease to one-ninth the original force.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2