If the heart muscle can produce a maximum wall tension in the left ventricle of 1.2x103 N/m, Calculate the pressure (in N/m and mm-Hg) that the 3.5 cm radius ventricle can produce
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If the heart muscle can produce a maximum wall tension in the left ventricle of 1.2x103 N/m, Calculate the pressure (in N/m and mm-Hg) that the 3.5 cm radius ventricle can produce
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- The density of water is 1.00 × 10³ kg/m³, and the density of mercury is 1.36 × 10¹ kg/m³. Calculate the absolute pressure på at the bottom of a 0.250-m tall graduated cylinder that is one-fourth full of mercury and three-fourths full of water. Pb = PaThe left side of the heart creates a pressure of 123 mm Hg by exerting a force directly on the blood over an effective area of 17.5 cm2. What force does it exert to accomplish this?Suppose a 2.30 N force can rupture an eardrum having an area of 1.11 cm2. (a) Calculate the maximum tolerable gauge pressure inside the eardrum (in the middle ear) in N/m2. (Pressures in the middle ear may rise when an infection causes a fluid buildup. Use 13.6 x 103 kg/m3 as the density of mercury.) N/m2 Convert this value to mm Hg. mm Hg (b) At what depth in fresh water would this person's eardrum rupture, assuming the gauge pressure in the middle ear is zero?
- At the earth's surface, the pressure is 1.955 x 1010 Pa lower than at a depth of d = 575 km. If a cubic centimeter block of a metal were brought to the surface from this depth, what would be its new volume? ulus for this metal is 9.2 × The bulk mod- 10 10 N/m² and ☑ atmospheric pressure is 1.013 × 105 Pa. Answer in units of cm³.A 79-kg swami lies on a bed of nails with his body supported by 2,000 nails. The area of the point of each nail is 1 mm^2. If the threshold pressure for pain is 1 mpa, how unpleasant is the experience for the swami? What if the point area is 0.1mm^2?Some claim that mountain climbers suffer from headaches due not only to a lack of oxygen in the brain, but also to the expansion of the brain in the cranium. Find the fractional change of the brain's volume due to a reduction in pressure from (1.48x10^2) kPa at sea level to 27.0 kPa high in the Himalayas. The bulk modulus is 2.10 GPa. Give your answer with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer