The human heart is a powerful and extremely reliable pump. each day it takes in and discharges about 7300 l of blood. assume that the work done by the heart is equal to the work required to lift that amount of blood a height equal to that of the average citizen of atlantic falls, approximately 1.6 m. the density of blood is 1050 kg/m3. what is the heart's power output in watts?

1.39 W

Explanation:

The volume of blood is

the density is

So the total mass of blood lifted in one day is

So the total work done is:

The total time taken is one day, so

So the power output is

no

sodium is solid at rt

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.