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 5, Problem 16QAP
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A large spherical gas cloud of radius = 5 x109 km has a mass = 2.4 x1030 kg, and is spinning to make one revolution in 60 years (i.e. Earth years, each of 365 days of 24 hours each). Due to gravity, the cloud gets smaller to a radius = 1.2 x106 km. What will be its period of rotation in minutes?
Help me answer this question please, thanks!-ILLUSTRATE THE RELATIONSHIP OF ANGULAR MEASUREMENT TO CIRCULAR ARC LENGTH.
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Chapter 5 Solutions
Understanding Our Universe
Ch. 5.1 - Prob. 5.1CYUCh. 5.2 - Prob. 5.2CYUCh. 5.3 - Prob. 5.3CYUCh. 5.4 - Prob. 5.4CYUCh. 5.5 - Prob. 5.5CYUCh. 5.6 - Prob. 5.6CYUCh. 5 - Prob. 1QAPCh. 5 - Prob. 2QAPCh. 5 - Prob. 3QAPCh. 5 - Prob. 4QAP
Ch. 5 - Prob. 5QAPCh. 5 - Prob. 6QAPCh. 5 - Prob. 7QAPCh. 5 - Prob. 8QAPCh. 5 - Prob. 9QAPCh. 5 - Prob. 10QAPCh. 5 - Prob. 11QAPCh. 5 - Prob. 12QAPCh. 5 - Prob. 13QAPCh. 5 - Prob. 14QAPCh. 5 - Prob. 15QAPCh. 5 - Prob. 16QAPCh. 5 - Prob. 17QAPCh. 5 - Prob. 18QAPCh. 5 - Prob. 19QAPCh. 5 - Prob. 20QAPCh. 5 - Prob. 21QAPCh. 5 - Prob. 22QAPCh. 5 - Prob. 23QAPCh. 5 - Prob. 24QAPCh. 5 - Prob. 25QAPCh. 5 - Prob. 27QAPCh. 5 - Prob. 28QAPCh. 5 - Prob. 29QAPCh. 5 - Prob. 30QAPCh. 5 - Prob. 31QAPCh. 5 - Prob. 32QAPCh. 5 - Prob. 34QAPCh. 5 - Prob. 35QAPCh. 5 - Prob. 36QAPCh. 5 - Prob. 37QAPCh. 5 - Prob. 38QAPCh. 5 - Prob. 39QAPCh. 5 - Prob. 40QAPCh. 5 - Prob. 41QAPCh. 5 - Prob. 42QAPCh. 5 - Prob. 43QAPCh. 5 - Prob. 44QAPCh. 5 - Prob. 45QAP
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- Why are all large celestial bodies (stars, planets, larger moons) very nearly spherical in shape? a because of the centrifugal force from the body's rotation b because of tidal forces c because gravity tries to pull every part of the celestial body to the center d because of the pressure from the heat in the body's corearrow_forwardExplain the tidal hypothesis.arrow_forwardStars originate as large bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. The angular velocity of a star increases as it shrinks because of answer choices conservation of angular momentum conservation of linear momentum conservation of energy the law of universal gravitation conservation of massarrow_forward
- Using the PappusGuldinus theorem, calculate the volume of the object that will be formed by rotating the following geometric figure 360 degrees along the X - X-axis.arrow_forwardA supergiant star collapses during a supernova blowing off 80.080.0% of it's mass. Angular momentum of the remaining star mass is conserved during the mass blow-off, and so the star spins rapidly. If the initial star diameter is 1.951.95 million kilometers, and it collapses to 14.014.0 km, find the resulting angular velocity in radians per second, given the star's initial angular velocity was 1.01.0 revolution per 36.036.0 days.arrow_forwardSaturn is approximately 10 times as far away from the sun as the earth. If dark matter changed the orbital properties of the planets so that Saturn had the same orbital speed as the earth, Saturn’s orbital acceleration would be ________ that of the earth.A. 1/10B. 1/100C. 1/1000D. 1/10,000arrow_forward
- alculate the angular velocity of the Neptune (orbital period of 165 Earth period) in its orbit around the Sun. Express your answer with the appropriate units.arrow_forwardWhile the Earth spins around its axis and orbits around the sun, then suppose we remove the sun from its location, will Earth continue to spin around its axis and orbits around the point where the sun used to be? Why or why not?arrow_forwardWhat fraction of the energy emitted from the sun is absorbed by the Earth? Treat the sun like a light bulb 93 million miles away. Also, assume the Earth only absorbs the energy associated with an area of approximately 50 million square miles. (This is roughly the area of a disc with the same radius as the Earth.)arrow_forward
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