An Astronaut Is Orbiting a Black Hole with a Mass

question 31

Multiple Choice

An astronaut is orbiting a black hole with a mass of 2.0 × 10³¹ kg at a distance of 126 km from its center. The astronaut is positioned in the spacecraft so that his 0.10-kg cheeks are 0.050 m on either side of the orbital circle. What is the net tidal force pulling his cheeks apart?
G = 6.67 x 10^-11 N·m²/kg².

• A) 1,000 N
• B) 2,000 N
• C) 10,000 N
• D) 20,000 N
• E) 100,000 N

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Definitions:

Difference

A point or way in which people or things are not the same; the state of being dissimilar or distinct in some aspect.

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