17.- For the Tokyo 2020 Olympics, 5.000 medals were manufactured and for this 32 kilos of gold. 3-500, silver and 2.200 bronze were used. If bronze is made up of 50% zinc, 85% copper, and 10% tin, how many kilos of each material were required for the bronze medals:

b.a device that inputs heat into a cool object

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.

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures

answercollision;