Para lograr que una pieza de 0,300 kg de cierto metal aumente su temperatura desde 40°c a 60 °c ha sido necesario suministrarle 2,299 j. calcula el calor especifico del metal. -calcula la temperatura inicial de una pieza de 200 g de cierto metal (c=459,8 jxkg^-1xk^-1) si después de absorber 20,900 j, su temperatura ascendió a 280 °c. ayuda por favor

the answer is d. 4

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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.