A Small Planet Having a Radius of 1000 Km Exerts

question 44

Multiple Choice

A small planet having a radius of 1000 km exerts a gravitational force of 100 N on an object that is 500 km above its surface.If this object is moved 500 km farther from the planet,the gravitational force on it will be closest to

• A) 75 N.
• B) 71 N.
• C) 56 N.
• D) 50 N.
• E) 25 N.

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Definitions:

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response.

Spontaneous Recovery

The reappearance of a previously extinguished response after a period of non-exposure to the conditioned stimulus.

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a period of time without exposure to the conditioned stimulus.