Determine the average normal stress in rod AB and the average normal stress in rod CD
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Determine the average normal stress in rod AB and the average normal stress in rod CD
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- The aqueous humor in a person's eye is exerting a force of 0.254 N on the 1.27 cm2 area of the cornea. (a) What pressure is this in mm Hg? (b) Is this value within the normal range for pressures in the eye? (YES/NO)(a) A man weighing 742 N lies on a bed of nails. Find the average pressure exerted by a nail on his skin if there are 1110 nails and the flattened point on each nail has a radius of 0.500 mm.(b) Calculate the pressure exerted on the skin by an acupuncture needle of radius 0.100 mm applied with a force of 4.20 N.Blood flows through a pipe, passing from the wide section with cross-sectional area A1, as shown below, into the narrow section, with cross-sectional area A2. If the speed of the water in the wide section, V1, is 2.09 m/s, and the pressure in the narrow part, P2, is 4.10 X 104 Pascals, find (a) the speed of the blood in the narrow section v2; (b) the pressure of the blood in the wide section, P1 (Density of blood = p = 1020 kg/m³ ) 2 A2= 0.237 m P, = 4.1 X 10° Pascalse 4.1 X 10* Pascals- 5.00 m V1 = 2.09 m/s P1= ? A, = 0.415 m2 %3D
- A volunteer weighing 750 N sits on a bed of 150 closely spaced nails. Each nail has a cross-sectional area of 0.00025 m2. Assuming that the volunteer occupies the entire space of 1nail?, how much pressure does the nail exert on him?Suppose a piano tuner stretches a steel piano wire 5.5 mm. The wire was originally 0.825 mm in diameter, 1.27 m long, and has a Young's modulus of 2.10 × 1011 N/m2. l0 = 1.27 ml = 5.5 mmd = 0.825 mm Calculate the force a piano tuner applies to stretch the steel piano wire in Newtons. F =Predict the hydraulic conductance, Lp, for Starling's equation for flow through the wall of a capillary. Assume that all proteins are strained out. > for a total capillary surface area (entire body) of 500 m?. > Assume the following, the entire cleft region, surface area is 0.5 m2, > an average tortuosity of 1.8, > average cleft pore radius of 3.5 nm, and > average thickness of endothelial lining of 0.5 mm. Give you answer with 3 significant figures in Sl units L, x 10^ m s kg =