A torch bulb lights noramly when the current through it is 0.015 A and the potential difference across it is 12.0.V. a) calculate the resistance of torch bulb when it lights normaly.
b) when the torch bulb lights normaly calculate: (i) the charge passing through the torch bulb in 1200s. (i) the energy delivered to torch bulb in this time.

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

explanation:

cant without the picture! ?

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.