(4) A U-tube of uniform cross-sectional area and open to the atmosphere is partially filled with mercury. Water is then poured into both arms. If the equilibrium configuration of the tube is shown in the figure below, with h2 = 0.534 cm, determine the value of h1. The density of mercury is 13,600 kg/m^3. Submit Answer Tries 0/10 Water Mercury B A (5) A 55.2 cm thick layer of oil (density 900.0 kg/m3) floats on a 128.6 cm thick layer of water (density 1000.0 kg/m3). What is the absolute pressure at the bottom of the water layer? Submit Answer Tries 0/10 (6) What is the longest vertical soda straw you could possibly drink from? (Assume that soda has a uniform density of 790.0 kg/m3.) Submit Answer Tries 0/10 (7) A person who weighs 646 N is riding a 107 N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 8.15E+5 Pa, what is the area of contact between each tire and the ground? Submit Answer Tries 0/10