134E Consider a system whose temperature is 18C. Express this temperature in R,K, and F. 1-37E The sencermure of a syssen dross by 45F during a cooling process. Express this drop in terperature in K. R, and C. 1-50 The basic barometer can be used to moasure the height of a bulding. If the barometric readings at the top and at the bottom of a building are 675 and 695mmH9. respectively, determine the height of the bulding. Take the densities of air and mercury to be 1.18kg/m3 and 13,600kg/m, respectively, page 42 1-71 Consider a U-tube whose arms are open to the atmosphere. Now water is poured into the U-tube from one arm, and light oil (p=790kg/m3) from the other. One arm contains 70cm-high water, while the other arm conta ns both fluids with an oil-to-water height ratio of 4. Determine the height of each fluid in that arm. 1-78 The gage pressure of the air in the tank shown in Fig, 1-78 is measured to be 80kPa. Determine the differential height h of the mercury column. 1-110 A gasoline line is connected to a pressure gage through a double-U manometer, as shown in Fig. 1-110. If the reading of the pressure gage is 370kPa, determine the gage pressure of the gasoline line