Question

The human heart force 4500cc of blood per min through the arteries under a pressure of 15 cm of hg calculate the hp of the heart take 1 hp=746W and g=980 cm/s2

Answer 1

Answer:

First we need to convert 15 cm of Hg into Si unts . 15cm of Hg =19998.36 kg/ms^2Then convert volume of flow in Si 4500cm^3/min = 0.000075m^3/secUse the formula Power =PRESSURE ×VOL. OF FLOW PER SECP=(19998.36 × .000075) = 1.5WCONVERT INTO HPPOWER =( 1.5/746)= 20 × 10^-4 HP (APPROX.

Explanation:

Answer 2

Answer:

Explanation:

Flowing rate of heart is 4500 cubic cm (cc)

Convert cc to metre cube 4500÷1000000 ( 1cc = 1000000m cube) = 45× 10 raised to minus 4

& pressere = convert cm to pascal = 15×1333.22 = 19998.3 ( 1cm = 1333.2239)

Hp = 45 × 10 to the power -4 × 19998.3 ÷ 746 × 60 sec = 0.0020 ( = i.e; 20× 10 to the power -4