Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 2, Problem 3CC
To determine
The number of times the Sun would rise and set each year if the Earth starts rotating three times faster on its own axis as it does now.
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The earth revolves around the sun in exactly 365 1/4 days which is equivalent to 1 year. To make up for the loss of 1/4 day, the calendar was adjusted so that we have a leap year for every 4 years. If the earth were to speed in its motion slightly so that a year would be completed in exactly 365 days and 6 hours, how often would we need to have a leap year?
If Earth be one half of its present distance from the Sun, by how many days will the present one year on the surface of Earth will change?
What would be the duration of the year,
if the distance between the earth and the sun
gets doubled ?
(a) 129 days
(b) 365 days
(c) 556 days
(d) 1032 dayş
Chapter 2 Solutions
Universe
Ch. 2 - Prob. 1CCCh. 2 - Prob. 2CCCh. 2 - Prob. 3CCCh. 2 - Prob. 4CCCh. 2 - Prob. 5CCCh. 2 - Prob. 6CCCh. 2 - Prob. 7CCCh. 2 - Prob. 8CCCh. 2 - Prob. 9CCCh. 2 - Prob. 1CLC
Ch. 2 - Prob. 2CLCCh. 2 - Prob. 1QCh. 2 - Prob. 2QCh. 2 - Prob. 3QCh. 2 - Prob. 4QCh. 2 - Prob. 5QCh. 2 - Prob. 6QCh. 2 - Prob. 7QCh. 2 - Prob. 8QCh. 2 - Prob. 9QCh. 2 - Prob. 10QCh. 2 - Prob. 11QCh. 2 - Prob. 12QCh. 2 - Prob. 13QCh. 2 - Prob. 14QCh. 2 - Prob. 15QCh. 2 - Prob. 16QCh. 2 - Prob. 17QCh. 2 - Prob. 18QCh. 2 - Prob. 19QCh. 2 - Prob. 21QCh. 2 - Prob. 22QCh. 2 - Prob. 23QCh. 2 - Prob. 24QCh. 2 - Prob. 25QCh. 2 - Prob. 26QCh. 2 - Prob. 27QCh. 2 - Prob. 28QCh. 2 - Prob. 29QCh. 2 - Prob. 30QCh. 2 - Prob. 31QCh. 2 - Prob. 32QCh. 2 - Prob. 33QCh. 2 - Prob. 34QCh. 2 - Prob. 35QCh. 2 - Prob. 36QCh. 2 - Prob. 37QCh. 2 - Prob. 38QCh. 2 - Prob. 39QCh. 2 - Prob. 40QCh. 2 - Prob. 41QCh. 2 - Prob. 42QCh. 2 - Prob. 43QCh. 2 - Prob. 44QCh. 2 - Prob. 45QCh. 2 - Prob. 46QCh. 2 - Prob. 47QCh. 2 - Prob. 48QCh. 2 - Prob. 49QCh. 2 - Prob. 50QCh. 2 - Prob. 51QCh. 2 - Prob. 52QCh. 2 - Prob. 53QCh. 2 - Prob. 54QCh. 2 - Prob. 55QCh. 2 - Prob. 56QCh. 2 - Prob. 57QCh. 2 - Prob. 58QCh. 2 - Prob. 59QCh. 2 - Prob. 60QCh. 2 - Prob. 61QCh. 2 - Prob. 62Q
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- In a part of Earth’s orbit where Earth is moving faster than usual around the Sun, would the length of the sidereal day change? If so, how? Explain.arrow_forwardWhat is the latitude of the North Pole? The South Pole? Why does longitude have no meaning at the North and South Poles?arrow_forwardOn the day of the vernal equinox, the day length for all places on Earth is actually slightly longer than 12 hours. Explain why.arrow_forward
- Ex. 10 : What would have be the duration of the year if the distance between earth and sun were half the present distance ?arrow_forwardThe Earth covers about 1° per day in its orbit about the Sun, and the solar day is slightly longer than the sidereal day. If Earth spun in a retrograde direction like Venus but it still had the same sidereal period (23 hr 56 min), how long would the solar day be? The solar day would be 72 hr and min.arrow_forwardIf Earth rotated once every 48 hours, and everything else was the same, which of the following statements would not be true? High tide would happen less frequently. The length of a day would be longer. The length of the year would be longer. The daytime temperatures would be higher on average. There would still be summer and winter in the temperature zones.arrow_forward
- The time it takes the Earth to complete one 360-day rotation around its axis is 24 hours, 4 minutes O 24 hours 23 hours, 56 minutes 365 daysarrow_forwardHow, and by roughly how much, would the length of the solar day change if Earth’s rotation were suddenly to reverse direction?arrow_forwardFor daily and yearly motions, ancient astronomers thought that the sun, moon, stars, and planets were related to a rotatingarrow_forward
- What is the difference between prograde rotation and retrograde rotation?arrow_forwardSuppose the Sun were somehow replaced by a star with five times as much mass. How long would the Earth year last in this last case? (hint: Newton’s version of Kepler’s 3rd Law)arrow_forwardHow far do you travel relative to the CENTER of the sun in 2 days?arrow_forward
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