A. cylindrical disk of wood weighing 50.0 [N] and having a diameter of 25.0 [cm] floats on a liquid of density p = 0.750 [g/cm3]. The cylinder of liquid is 60.0 [cm] high and has a diameter that is the same as that of the wood. What is the gauge pressure halfway down the liquid?

A. cylindrical disk of wood weighing 50.0 [N] and having a diameter of 25.0 [cm] floats on a liquid of density p = 0.750 [g/cm3]. The cylinder of liquid is 60.0 [cm] high and has a diameter that is the same as that of the wood. What is the gauge pressure halfway down the liquid?

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Question

B. For your science exhibit, you want to make a block of wood float at the interface between a layer of oil of unknown density p oil, and water (p water = 1000 [kg/m3 ]) inside a container as shown. What must be the density of the oil so that only 30.0% of the wood is submerged in water?

C. Water is flowing through a pipeline shown on the right. The radii of the pipe at points 1 and 2 are 0.500 [m] and 1.50 [m], respectively. The volume flow rate through the pipeline is 2.50 [L/s]. If the pressure at point 1 in the pipe is 200 [kPa], what is the pressure at point 2, located 5.00 [m] above point 1?

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What is the answer to b and c?

Assuming that for B, the density of wood is 950 kg/m^3

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