When scattering photons from electrons at rest, if the scattered photons are detected at 45o and if their wavelength is triple that of the incident photons, calculated a) b) c) the wavelength of the incident photons the energy of the recoiling electrons and the angle at which they recoil the energies of the incident and scattered photons.

car stops. he keeps going = he has inertia

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.