Assume That the Cities Lie on the Same North-South Line $50 ^ { \circ }$

question 175

Multiple Choice

Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km.
-A pulley rotates through $50 ^ { \circ }$ in one minute. How many rotations (to the nearest tenth of a rotation) does the pulley make in an hour?

• A) \(16.7\) rotations
• B) \(150.0\) rotations
• C) \(8.3\) rotations
• D) \(300.0\) rotations

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Definitions:

Social Support

The perception or reality of being cared for, supported, and having assistance from other people.

Negativity

The tendency to focus on negative elements, expect the worst, and dwell on negative thoughts and feelings.

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A personality trait characterized by a general expectation that good things will happen or believing that the future will be favorable because one can control important outcomes.

Oxytocin

A hormone and neurotransmitter often associated with social bonding, reproduction, and childbirth.