How much does the atmosphere weigh over each square meter of surface? express this in tonnes (units of 1000 kg). recall the conversion factors: 104 cm2 = 1m2, 1 tonne = 1000 kg = 106
g.
Atmospheric pressure = 101,325 Newtons / m² Weight per meter square = 101,325 Newtons Mass per meter square = 101,325 / (9.81 x 1000) Mass per meter square = 10.3 tonnes per m²
