The number of squares preceding each problem indicates its approximate level of difficulty...

The number of squares preceding each problem indicates its approximate level of difficulty.

Calculate the total mass of a uniform layer of water covering the entire Martian surface to a depth of 2 m (see Section). Compare it with the mass of Mars and with the mass of Venus’s atmosphere (Problem).

Problem

Approximating Venus’s atmosphere as a layer of gas 50 km thick with a uniform density of 21 kg/m3, calculate its total mass. Compare your answer with the mass of Earth’s atmosphere (Chapter, Problem) and with the mass of Venus.

Problem

Approximating Earth’s atmosphere as a layer of gas 7.5 km thick, with a uniform density of 1.3 kg/m3, calculate the atmosphere’s total mass of the atmosphere. Compare your result with Earth’s mass.