A gas eventually will escape from a planet's atmosphere if the average velocity of the atoms exceeds 1/6 times the escape velocity of the planet. If the average velocity of water vapor in Venus's atmosphere is 0.9 km/s, would it eventually escape into outer space? Note that Venus's mass is 5 × 1024 kg, and its radius is 6,050 km.
a. Water vapor would escape because 1/6 times the escape velocity is 0.51 km/s.
b. Water vapor would not escape because 1/6 times the escape velocity is 1.7 km/s.
c. Water vapor would escape because 1/6 times the escape velocity is 0.42 km/s.
d. Water vapor would not escape because 1/6 times the escape velocity is 2.6 km/s.
e. Water vapor would escape because 1/6 times the escape velocity is 1.3 km/s.
b. Water vapor would not escape because 1/6 times the escape velocity is 1.7 km/s.
You might also like to view...
A thin-walled spherical tank has a diameter of 0.75 m and an internal pressure of 20 MPa. The yield stress in tension is 920 MPa, the yield stress in shear is 475 MPa, and the factor of safety is 2.5. The modulus of elasticity is 210 GPa, Poisson’s ratio is 0.28, and maximum normal strain is 1220 3 1026. The minimum permissible thickness of the tank is approximately:
(A) 8.6 mm
(B) 9.9 mm
(C) 10.5 mm
(D) 11.1 mm
Which time frame(s) do we live in today? (More than one may apply.)
A) Quaternary period B) Tertiary period C) Cenozoic era D) Phanerozoic eon E) Paleozoic era
Compared to the mass of a hydrogen atom, the mass of an oxygen atom is
A) 8 times as great. B) 12 times as great. C) 16 times as great. D) appreciably more than 16 times as great.
An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N. The radius of the planet is 4.0 × 10^6 m. What is the mass of Planet X? (G = 6.67 × 10^-11 N × m2/kg2)
a. 13 × 10^19 kg c. 9.6 × 10^24 kg b. 17 × 10^22 kg d. 4.8 × 10^24 kg