To Measure the Mass of a Planet with the Same

question 22

Multiple Choice

To measure the mass of a planet with the same radius as Earth, an astronaut drops an object from rest (relative to the planet) from an altitude of one radius above the surface. When the object hits its speed is 4 times what it would be if the same experiment were carried out for Earth. In units of Earth masses, the mass of the planet is:

• A) 2
• B) 4
• C) 8
• D) 16
• E) 32

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Definitions:

Avoidance

A behavior or action taken to escape from or prevent an unpleasant situation or outcome.

Reappraisal

A cognitive process in which an individual changes their interpretation of a situation in order to alter its emotional impact.

Health Psychology

The subfield within psychology that is concerned with the psychological factors that contribute to health, illness, and recovery.

Physical Activities

Bodily movements produced by skeletal muscles that require energy expenditure, including exercises and daily activities.