a. If a barrel bursts when the fluid pressure at the center of the barrel reaches 55.1 kPa above atmospheric pressure, what height in meters to two significant digits would the experimentalist need to go to make the wine (density = 994 kg / m³) cause the barrel to burst?

b. A spray can is used until it is empty except for the propellant gas, which has a pressure of 179.1 kPa at 296 K. If the can is thrown into a fire (T = 748 K), what will be the pressure inside the hot can in kPa to two significant digits?