Understanding Our Universe
Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 11, Problem 37QAP

(a)

To determine

The time required by sunspot to go once around the Sun.

(b)

To determine

The distance covered by the sunspot during the rotation period.

(c)

To determine

The speed of sunspot relative to the stars.

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Give proper explanation The surface temperature of the Sun is about 5750 K. What is this temperature on the Fahrenheit scale?
Even if the Earth's orbit were circular, we would still have seasons.  The reason is that     the seasons are actually caused by the tidal influence of the Moon     the Sun would still be off-center and our distance from it would still vary     the Sun would still have an annual cycle of storms and sunspots     the seasons are actually determined by the tilt of the Earth's axis
A rotation rate, or frequency, of 500 nHz corresponds to a rotation period of 23 days—it takes 23 days for material to follow one complete circle around the Sun. Furthermore, the frequency and period are inversely proportional to one another: if one is doubled, the other is halved. Given these facts, what is the approximate rotation period (in days) for equatorial material at the Sun's surface? (Use your answer to the previous question as the rotation rate.)
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