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Nubcake
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1.Atmospheric pressure is 101kPa
a) Calculate the total force exerted by the atmosphere on the surface of the Earth. Radius of Earth is 6.4 Mm
b)Calculate the mass of the Earth's atmosphere , State any assumptions made.
P = F/A ρ = m/v [\b]
a) Surface area of a sphere is 4∏r^2
A = 4 x ∏ x (6.4 x 10^6)^2
A = 5.147 x 10^14 m^2
P = 101 x 1000 Pa
F = (101 x 1000) x (5.147 x 10^14) N
F = 5.2 x 10^19 N
b) Not sure what to do here , I've only got force , pressure and area , maybe volume too.
a) Calculate the total force exerted by the atmosphere on the surface of the Earth. Radius of Earth is 6.4 Mm
b)Calculate the mass of the Earth's atmosphere , State any assumptions made.
P = F/A ρ = m/v [\b]
a) Surface area of a sphere is 4∏r^2
A = 4 x ∏ x (6.4 x 10^6)^2
A = 5.147 x 10^14 m^2
P = 101 x 1000 Pa
F = (101 x 1000) x (5.147 x 10^14) N
F = 5.2 x 10^19 N
b) Not sure what to do here , I've only got force , pressure and area , maybe volume too.