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Physics / Conceptual Physics 12 / Chapter 28 / Problem 42TAS

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

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The diameter of the Sun makes an angle of 0.53° from

Chapter 30, Problem 42TAS

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QUESTION:

The diameter of the Sun makes an angle of \(0.53^\circ\) from Earth. How many minutes does it take the Sun to move 1 solar diameter in an overhead sky? (Remember that it takes 24 hours, or 1440 minutes, for the Sun to move through \(360^\circ\).) How does your answer compare with the time it takes the Sun to disappear, once its lower edge meets the horizon at sunset? (Does refraction affect your answer?)

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QUESTION:

The diameter of the Sun makes an angle of \(0.53^\circ\) from Earth. How many minutes does it take the Sun to move 1 solar diameter in an overhead sky? (Remember that it takes 24 hours, or 1440 minutes, for the Sun to move through \(360^\circ\).) How does your answer compare with the time it takes the Sun to disappear, once its lower edge meets the horizon at sunset? (Does refraction affect your answer?)

ANSWER:

Step 1 of 3

As viewed from Earth, the diameter of the Sun makes an angle .We know the Sun takes 24 hours to complete one revolution, , so we can use the ratios of the complete revolution to compute the time needed for the Sun to move one solar diameter.

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