Planet Zero Has a Mass of 5

question 6

Multiple Choice

Planet Zero has a mass of 5.0 × 1023 kg and a radius of 2.0 × 106 m. A space probe is launched vertically from the surface of Zero with an initial speed of 4.0 km/s. What is the speed of the probe when it is 3.0 × 106 m from Zero's center?

• A)3.0 km/s
• B)2.2 km/s
• C)1.6 km/s
• D)3.7 km/s
• E)5.9 km/s

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Definitions:

Increase in Supply

A situation in which the quantity of a good or service that producers are willing and able to offer for sale rises, holding all else equal.

Increase in Demand

Occurs when more of a good or service is sought by consumers at each and every price, often represented by a rightward shift of the demand curve.

Equilibrium Quantity

The quantity of goods or services that is supplied and demanded at the equilibrium price, where supply equals demand.

Demand Falls

A situation where there is a decrease in the quantity of a product or service that consumers are willing and able to purchase at a given price.