In giving a patient a blood transfusion, the bottle is set up so that the level of blood is 1.3 m above the needle, which has an internal diameter of 0.36 mm and 3 cm in length . If `4.5 cm^(3)` of blood passes through the meedle in one minute, calculate the viscosity of blood. The density of blood is 1020 kg `m^(-3)`.

While giving a patient a blood transfusion, a bottle is set up to pass the blood through a needle of length 2 cm and internal diameter 0.35 mm. If the level of blood is 1.4 m above needle, calculate the rate of flow and speed of the blood coming out of the needle. Take, coefficient of viscosity of blood =0.238 poise. Density of blood =1020" kg/m"^(3) .

5000 cm^(3) of blood per minute is fored by heart through the arteries under a pressure of 150 mm. What will be the horse power of heart if density of blood is 1.03 " g " cm^(-3) ?

An iron ball of radius 0.3 cm falls through a column of oil of density 0.94 g cm^(-3) . If it attains a terminal velocity of 0.54 m s^(-1) , what is the viscosity of oil? Density of iron is 7.8 g cm^(-3)

Calculate the hydrostatic difference in blood pressure between the brain and the foot in a person of height 1.50 m. The density of blood is 1.06 xx 10^(3) kg//m^(3) .

A hollow sphere of external and internal diameter 4 cm and 2 cm, respectively, floats in a liquid of density 3.5 g cm^(-3) . The level of the liquid coincides with the center of the sphere. Calculate the density of the material of the sphere.

What is the pressure drop (in mm Hg) in the blood as it passes through a capillary 1mm long and 2mu m in radius if the speed of the blood through the centre of the capillary is 0.66mm/s ? (The viscosity of whole blood is 4xx10^(-3) PI)

(a) What is the largest average velocity of blood flow in an artery of radius 2xx10^(-3)m if the flow must remian laminar? (b) What is the corresponding flow rate? Take viscosity of blood to be 2.084xx10^(-3)Pa-s . Density of blood is 1.06xx10^(3)kg//m^(3) .

A gas buble of diameter 2 cm rises steadily at the rate of 2.5 mm s^(-1) through a solution of density 2.25 g cm^(-3) . Calculate the cofficient of viscosity of the lquid. Neglect the density of the gas.

The human heart forces 4000cm^(3) of blood per minute through the arteries under pressure of 130mm . The density of blood is 1.03g//c c . What is the horse power of the heart ?

How long current of 3A has to be passed through a solution of silver nitrate to coat a metal surface of 80cm^(2) with a 0.005mm thick layer? Density of silver is 10.5 g//cm^(3) .