distance of 1 m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is 0.1 cm. The velocity outside the boundary layer is 25 ml ec.The boundary layer thickness at a distance of 4 m is

Problem 4: Heart Mechanics The human heart is a pump. Assume an average person with 5.3 L of blood, which has a specific gravity of 1.060 and a dynamic viscosity 3 times that of water. Assume a temperature of 35°C, a resting pulse of 90 beats/minute, heart discharge of 5.0 L/min, and head change of 35 mm Hg. By the way, that head change corresponds to a blood pressure of "105-over-70", which means the high pressure is 105 mm Hg, and the low pressure is 70 mm Hg, giving AH = 35 mm Hg. Part A What is the power delivered to the blood by the heart? [W] Part B If the power required by the heart is 2.0 W, what is the heart's efficiency? [-] Part C What is the heart's daily energy requirement? [kJ] Part D Convert the units from [kJ] to [number of milk shakes]. 4.2 kJ = 1 food calorie, and assume a 16 oz Strawberry Triple Thick Shake containing 560 food calories.

The value of stress concentration factor depends on the geometry. If Ka and Kb are stress concentration factor for case (a) and case (b), respectively, which answer of the following is true?  ​     Ka > Kb     KA = KB     KA < KB     None of the rest.

Fluid mechanics problem Must draw a control volume for the problem.