A Gas Eventually Will Escape from a Planet's Atmosphere If

question 81

Multiple Choice

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.

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Definitions:

Unit Sold

The total number of individual items or products that have been sold by a business during a given period.

Variable Cost

Costs that change in direct proportion to changes in the levels of production or sales activities, such as materials and labor costs.

Relevant Range

The range of activity or volume over which the assumed cost behavior is valid, beyond which cost patterns and relationships may change.

Average Costs

The total costs divided by the number of units produced, giving a per unit cost average.