Two tiny conducting spheres are identical and carry charges of -18.8 µc and +46.5 µc. they are separated by a distance of 2.47 cm. (a) what is the magnitude of the force that each sphere experiences, and is the force attractive or repulsive? n

, attractive.

Explanation:

For calculating this force we use the Coulomb Law:

Where is the Coulomb's constant, and the values of each charge and r the distance between them.

Since the Coulomb's constant as I wrote it is in S.I. we have to write all the magnitudes in that system of units, and substitute:

This force is attractive since both charges are of opposite sign.

your answer is, orbit around the nucleus

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.