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- 4) Calculate the pressure difference between A and B. Ow = 9,806 kN/m³ SGmercury: 13.6 = A+ water 30 cm 45 cm mercury 20 cm 45 B air6.) A cylindrical oil storage tank is 50 meters all and has a diameter of 40 meters is sitting on a concrete pad. Do not change system of units - keep answer in decimal form Mass and Weight Density Values: Oil - 870 kg/m3 Mass Density, and 54.2 lb/ft3 Weight Density. Concrete - 2300 kg/m3 Mass Density and 140 lb/ft3 weight density. Air - 1.29 At 0 degrees C and 1 atm pressure, 0.081 at 32 degrees F and 1 atm pressure. a.) What is the pressure inside the tank at 10 meters above the concrete pad? _____________________ Pa b.) what is the total force acting on the bottom of the tank? ____________ N c.) What is the total force acting on the side of the tank? _____________ N3. Now you will design a pressure receptor. First, draw a circle on a piece of paper and then draw two or three lines from the center to beyond the perimeter of the circle. Imagine that the circle represents a balloon and the lines are threads, which are attached to the surface of the balloon. How would blowing into the balloon, to increase the pressure of the air inside, affect: a. The size of the balloon? b. The threads attached to the surface of the balloon? c. Imagine that the threads are the terminals and axons of sensory neurons. If the terminals are sensitive to stretch, what will happen to the frequency of the action potentials in the axons as the pressure inside the balloon is changed?