In normal adult the average speed of the though the aorta (which has a radius of 0.9 cm) is `0.33ms^(-1)` From the aorta ,the blood goes into major arteries which are 30 in number ,each of radius 0.5 Calculate the speed of blood through the arteries.

A particle moves in a circular path of radius 0.5 m with a linear speed of 2 ms^(-1) ,its angular speed is

Blood flows through a main artery of area of cross section 2cm^(2) with a speed of 0.25ms^(-1) . If it branches into several capillaries of total area of cross section 0.4m^(2) the average speed of blood through each capillary is....

The flow of blood in a large artery of a anesthetized dog is diverted through a venturimeter. The wider part of the meter has a cross-sectional area equal to that of the artery. Ie., 10mm^(2) . The narrower part has an area 5 mm^(2) . The pressure drop in the artery is 22 Pa . Density of the blood pressure drop in the artery is 22Pa . Density of the blood pressure drop in the artery is 22Pa . Density of the blood is 1.06xx10^(3)kgm^(-3) . The speed of the blood in the artery is

A ball of mass 0.1kg is suspended by a string 30 cm long Keeping the string always taut the ball describe a horizontal circle of radius 15cm Calculate the angular speed of the ball .

A mass of 0.675 kg on a frictionless table is attached to a string which passes through a hole in the table at the centre. If the radius of the circle in which the mass rotates, is 5 m when its speed is 10 ms^(-1) , find the tension of the string. It is found that on drawing down the string by 0.2 m, the tension is increased 4.63 times. Calculate the work done by the string on the revolving mass during the reduction of the radius. [Hint : Apply work-energy theorem to find work done by the force]

Find the nature of flow of water flowing at a speed of 8 cms"^(-1) through a horizontal tube of radius 2 cm. The viscosity of water at room temperature is 0.01 Poise.

A vessel is in form of an inverted cone . Its height is 8 cm and the radius is 5 cm . It is filled with water up to the rim .When lead shots , each of which is a sphere of radius 0.5 cm , are dropped into the vessel , one fifth of the water flows out . Find the number of lead shots dropped into the water .

The refractive index of glass is 1.5. Calculate the speed of light in glass. The speed of light in air is 3.0 xx 10^(8) ms^(-1) .