Amoving company is called into a building and asked to relocate 520 bricks to a location 15 meters above the ground if each brick is 4 kilograms what amount of work will be needed to accomplish the task

Wow ! I'm sweating just thinking about it.

The amount of work required is the additional potential energy

that the bricks will have when they're all up at the higher location.

Increase of potential energy = (mass) x (gravity) x (increase in height)

The total mass is (520 bricks) x (4 kg/brick) = 2,080 kilograms

Potential energy = (2,080 kg) x (9.8 m/s²) x (15 m)

Potential energy = 305,760 Joules.

Grab your hat, put on your sunscreen, and get busy.

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.