Find v1, the speed of the fluid in the left end of the main pipe.
Express your answer in terms of h1, h2, g, and either A1 and A2 or γ, which is equal to A1A2.
question 2- What is the gas pressure inside the box shown in the figure? (Figure 1)
Express your answer using two significant figures.
question 3-You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 meters per second per second. The pressure at the surface of the water will be 140kPa , and the depth of the water will be 13.8m . The pressure of the air in the building outside the tank will be 87.0kPa .
Find the net downward force on the tank's flat bottom, of area 1.90m2 , exerted by the water and air inside the tank and the air outside the tank.
Express your answer numerically in Newtons, to three significant figures.
This question was asked on Jan 21, 2014 and answered on Jan 21, 2014.
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