A person's heart rate is 75 / min, 80 ml of blood is delivered per beat, and his blood pressure (which can be regarded as the average pressure of blood delivered by the heart) is 15000 PA ① The average power of this person's heart beating ② How high does this person's heart work in a day equal to lifting a one ton object? Our teacher said that this problem should be constantly publicized and deformed. If I change to power P = pressure PSV, I won't be able to do so. It's troublesome for experts to give advice,

A person's heart rate is 75 / min, 80 ml of blood is delivered per beat, and his blood pressure (which can be regarded as the average pressure of blood delivered by the heart) is 15000 PA ① The average power of this person's heart beating ② How high does this person's heart work in a day equal to lifting a one ton object? Our teacher said that this problem should be constantly publicized and deformed. If I change to power P = pressure PSV, I won't be able to do so. It's troublesome for experts to give advice,

1) Let the cross-sectional area of the blood vessel be s, and the volume of blood delivered by the heart each time be v
If P = f / s, f = PS = 15000pa × s, v = sh (where h is the s volume in w = FS, which is the base times height)
V = 80ml = 0.00008 m3 s = H = V / S = 0.00008/s
W = FS = 150000pa × s × 0.00008 / S = 150000pa × 0.00008 m3 = 1.2J
Because the heart rate is 75 / min, 75 beats per 60 seconds, w = 1.2J × 75 = 90J, t = 60s
p=w/t=1.5w
(2)t=24h=86400s w=pt=1.5w×86400s=129600J m=1t=1000kg F=G=mg=9800N
W = FS s = w / F = 129600j / 9800n = 13.2m

What factors can affect the pumping of the heart?
Thank you first
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