(a) Calculate the height of a building if the pressure measured at the bottom of the building is 1011.1 hPa and the pressure measured at the top of the building is 999.3 hPa. Assume that the acceleration due to gravity is 9.8 m s-2 and the density of air is 1.2 kg m-3).
Show your workings, using arithmetic symbol conventions as follows:
* (for multiplication)
/ (for division)
+ (for addition)
- (for subtraction)
(b) Discuss the possible sources of inaccuracy in your calculation