89 Physics
2X 2074 Set A Q. No. 9d The period of moon revolving under the
gravitational force of the earth is 27.3 days. Find the distance
of the moon from the centre of the earth if the mass of earth
is 5.97x1024 kg.
[4]
Ans: 3.83 x 108 m

and 1and 1

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.