As a result, the magnitude of the magnetic field inside the coil increases from 0.280 T to 0.540 T in 0.120 s. What is the magnitude of the average induced emf in the wire coil while the magnet is being moved toward it

to be honest as much as i would love to answer this. i feel as if something's missing. just saying.

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.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..