Question

what fraction of a piece of iron will be submerged when it floats to mercury?

Answer 1

Answer:

$0.57$

Explanation:

So this gives us the fraction submerged: the amount of iron within the mercury divided by the total volume of the mercury piece. So that's 7.8 times 10 to the 3 kilograms per cubic meter—density of iron— divided by 13.6 times 10 to the 3 kilogram's per cubic meter—density of mercury— which is 0.57.