The nucleus of the hydrogen atom has a radius of about 1.00 x 10^-15 m. the electron is normally at a distance of about 5.30 x 10^-11 m from the nucleus. assuming that the hydrogen atom is a sphere with a radius of 5.30 x 10^-11 m, find each of the following. (a) the volume of the atom
(b) the volume of the nucleus
(c) the percentage of the volume of the atom that is occupied by the nucleus.

f=ma newton's second law 7x8=56n

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.