An Astronaut in a Space Suit Is Motionless in Outer

question 19

Multiple Choice

An astronaut in a space suit is motionless in outer space.The propulsion unit strapped to her back ejects some gas with a velocity of 50 m/s.The astronaut recoils with a velocity of 1.0 m/s.If the mass of the astronaut and space suit after the gas is ejected is 120 kg,the mass of the gas ejected is

• A) 1.0 kg.
• B) 1.9 kg.
• C) 2.4 kg.
• D) 3.00 kg.
• E) 3.6 kg.

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Definitions:

Constant Marginal Cost

A situation where the cost of producing one additional unit is the same regardless of the volume produced.

Separate Markets

Distinct market segments or spaces where different goods or services are traded, often separated by geographical, cultural, or regulatory barriers.

Monopolist

A single seller in a market who controls all the sales of a particular product or service, with no close substitutes.

United States

A country located in North America, consisting of 50 states and a federal district, known for its significant influence on global economics, politics, and culture.