The container of fig. bellow holds water and air as shown ,what is the pressure at A,B,C,D in pounds per ?square foot and pascal 3it Water Water II Fig. 2.39

4. A gas is initially at an absolute pressure of 400 kPa. What is its final absolute pressure if its volume is doubled? Presume that the atmospheric pressure is 101.3 kPa. a. b. C. d. 800 kPa 200 kPa 100 kPa None of the above epica on ni

2.78 An automobile has just dropped into a river. The car door is approximately a rectangle, measures 36 in. wide and 40 in. high, and hinges on a vertical side. The water level inside the car is up to the midheight of the door, and the air inside the car is at atmospheric pressure. Calculate the force required to open the door if the force is applied 24 in. from the hinge line. See Fig. P2.78. (The driver did not have the presence of mind to open the window to escape.) 36" -24" V 40 ■FIGURE P2.78