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 8, Problem 38QAP
(a)
To determine
The diameter of the Uranus when the relative speed of earth and Uranus is given and time is given.
(b)
To determine
The conclusion about the planet’s diameter if its centre did not pass directly in front of the star.
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For this configuration, calculate the gravitational force exerted by the Sun on Uranus.You may find the values in the table below helpful Mass of the Sun 1.99 × 1030 kgMass of Uranus 8.68 × 1025 kgMass of Neptune 1.02 × 1026 kgSemimajor axis of Uranus’ orbit 2.871 × 1012 mSemimajor axis of Neptune’s orbit 4.498× 1012 m
For this configuration, calculate the gravitational force exerted by Neptune onUranus. You may find the values in the table below helpful ass of the Sun 1.99 × 1030 kgMass of Uranus 8.68 × 1025 kgMass of Neptune 1.02 × 1026 kgSemimajor axis of Uranus’ orbit 2.871 × 1012 mSemimajor axis of Neptune’s orbit 4.498 × 1012 m
How much mass would a 10-g sample of gold have on Uranus, with a gravity of 8.7 m/s2?
A. 8.7 N
B. 1.15 g
C. 10 g
D. 870 n
Chapter 8 Solutions
Understanding Our Universe
Ch. 8.1 - Prob. 8.1CYUCh. 8.2 - Prob. 8.2CYUCh. 8.3 - Prob. 8.3CYUCh. 8.4 - Prob. 8.4CYUCh. 8.5 - Prob. 8.5CYUCh. 8 - Prob. 1QAPCh. 8 - Prob. 2QAPCh. 8 - Prob. 3QAPCh. 8 - Prob. 4QAPCh. 8 - Prob. 5QAP
Ch. 8 - Prob. 6QAPCh. 8 - Prob. 7QAPCh. 8 - Prob. 8QAPCh. 8 - Prob. 9QAPCh. 8 - Prob. 10QAPCh. 8 - Prob. 11QAPCh. 8 - Prob. 12QAPCh. 8 - Prob. 13QAPCh. 8 - Prob. 14QAPCh. 8 - Prob. 15QAPCh. 8 - Prob. 16QAPCh. 8 - Prob. 17QAPCh. 8 - Prob. 18QAPCh. 8 - Prob. 19QAPCh. 8 - Prob. 20QAPCh. 8 - Prob. 21QAPCh. 8 - Prob. 22QAPCh. 8 - Prob. 23QAPCh. 8 - Prob. 24QAPCh. 8 - Prob. 25QAPCh. 8 - Prob. 26QAPCh. 8 - Prob. 27QAPCh. 8 - Prob. 28QAPCh. 8 - Prob. 29QAPCh. 8 - Prob. 30QAPCh. 8 - Prob. 31QAPCh. 8 - Prob. 32QAPCh. 8 - Prob. 33QAPCh. 8 - Prob. 34QAPCh. 8 - Prob. 35QAPCh. 8 - Prob. 36QAPCh. 8 - Prob. 37QAPCh. 8 - Prob. 38QAPCh. 8 - Prob. 39QAPCh. 8 - Prob. 40QAPCh. 8 - Prob. 41QAPCh. 8 - Prob. 42QAPCh. 8 - Prob. 43QAPCh. 8 - Prob. 44QAPCh. 8 - Prob. 45QAP
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- Calculate the Roche radius (in km) for Uranus. The diameter of Uranus is 5.11 ✕ 104 km.arrow_forwardUranus and neptune have almost similar masses. Which of them will exert the greater gravity towards the earth? Why? Explainarrow_forward) The diameter of the moon is about 11 million feet, and the diameter of Uranus is about170 million feet. If a scale model of the solar system is constructed so that the diameter of the moonis 1.2 feet, what will be the diameter of Uranus in feetarrow_forward
- The average density of the planet Uranus is 1.27 103 kg/m3. The ratio of the mass of Neptune to that of Uranus is 1.19. The ratio of the radius of Neptune to that of Uranus is 0.969. Find the average density of Neptune.arrow_forwardWhat is the consequence of Uranus’ spin axis being 98° away from perpendicular to its orbital plane?arrow_forwardIf Uranus’s epsilon ring is 50 km wide and the orbital velocity of Uranus is 6.8 km/s, how long should the occultation last that you expect to observe from Earth when the ring crosses in front of the star? (For the purposes of this problem, ignore the motion of Earth.)arrow_forward
- Describe the location of the equinoxes and solstices in the Uranian sky. What are the seasons like on Uranus?arrow_forwardDescribe four differences between the two ice giants, Uranus and Neptune, and the two gas giants, Jupiter and Saturn. (Hint: Review Celestial Profiles for all of these planets.)arrow_forwardJupiter is denser than water, yet composed for the most part of two light gases, hydrogen and helium. What makes Jupiter as dense as it is?arrow_forward
- Uranus is about 26,000 km in radius, and its main ring is about 51,000 km from the planets center. If you represent the planet with a ball 5 inches in radius, how far from the center would you place its main ring?arrow_forwardBoth Uranus and Neptune have a blue-green tint when observed through a telescope. What does this color tell you about their atmospheric composition?arrow_forward
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