Question

Calculate the minimum pressure required to force the blood from the heart to the top of the head (a vertical distance of 0.5 m). Given density of blood 1040 kg m3. Neglect friction.​

Answer 1

Answer:

Here, H2−h1=40cm,

ρ=1.04gcm−3

Ac cording to Bernoulli's Theorem

P1+ρgh1+12ρυ21=P2+ρgh2+12ρυ22

or P1−P2=ρg(h2−h1)+12ρ(υ22−υ21)

Let υ2=υ1 then, P1−P2=ρg(h2−h1)

=1.04×980×(40)=4.1×104dyne/cm2.

hope it helps you (✯ᴗ✯)｡◕‿◕｡

Answer 2

Answer:

H2−h1=40cm,

ρ=1.04gcm−3

P1+ρgh1+12ρυ21=P2+ρgh2+12ρυ22

or P1−P2=ρg(h2−h1)+12ρ(υ22−υ21)

Let υ2=υ1 then, P1−P2=ρg(h2−h1)

=1.04×980×(40)=4.1×104dyne/cm2.