A 1.5 kg iron horseshoe at 800C is dropped into a bucket of water at 20C. If the mass of water in the bucket is 5 kg, what is the final temperature of the water-iron mixture, given C iron = 448 ˚C and C water = 4187 C?

answer: the answer is a

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .