The specific heat of iron is 450 J/kg*K. How much energy is lost by 2 kg cooling off by 5 K. If anybody knows this answer to this question it would be a real help and I don’t understand how to do the work could u show the work so I understand

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid