5th Edition

ISBN: 8220103026918

Author: Walker

Publisher: PEARSON

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Textbook Question

Chapter 12, Problem 69GP

Predict/Calculate When the Moon is in its third-quarter phase, the Earth, Moon, and Sun form a right triangle, as shown in Figure 12-34. Calculate the magnitude of the force exerted on the Moon by (a) the Earth and (b) the Sun. (c) Does it make more sense to think of the Moon as orbiting the Sun, with a small effect due to the Earth, or as orbiting the Earth, with a small effect due to the Sun?

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Chapter 12, Problem 68GP

Chapter 12, Problem 70GP

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**68 @ Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of Fig. 13-51, at an altitude h of 400 km. Igor, the commander of one of the ships, arrives at any fixed point in the orbit 90 s ahead of Picard, the commander of the other ship. What are the (a) period To and (b) speed Vo of the ships? At point P in Fig. 13-51, Picard fires an instanta- neous burst in the forward direction, reducing his ship's speed by 1.00%. After this burst, he follows the ellip- tical orbit shown dashed in the fig- ure. What are the (c) kinetic energy and (d) potential energy of his ship immediately after the burst? In Picard's new elliptical orbit, what are (e) the total energy E, (f) the semimajor axis a, and (g) the orbital peripd T? (h) How much earlier than Igor will Picard return to P? Figure 13-51 Problem 68.

A) If you wanted to place a satellite in a geosynchronous orbit, at what height above the Earth’s surface should you place it? (Earth mass 5.98 e+24 kg, Earth radius 6e+6, G = 6.67 e-11) (geosynchronous means period matches Earth's rotation period) A) 5.1 e+7 B) 4.15e+7 meters C) 3.55e+7 meters B) For the previous situation using the given answer, what is the difference in potential energy between Earth's surface and the satellite height for a satellite with 1 kg mass? (using convention 5x106 would be written 5 e6) A)5.5 e7 Joule B)1.3 e8 Joule C) -1.38 e8 Joule D) -5.5 e7 Joule

Chapter 12 Solutions

EBK PHYSICS

Ch. 12.1 - Rank the four systems shown in Figure 12-6 in...Ch. 12.2 - Suppose the Sun suddenly collapsed to half its...Ch. 12.3 - Satellite A orbits the Earth at the radius r,...Ch. 12.4 - Prob. 4EYU Ch. 12.5 - Prob. 5EYU Ch. 12.6 - If the radius of the Moons orbit around the Earth...Ch. 12 - It is often said that astronauts in orbit...Ch. 12 - When a person passes you on the street, you do not...Ch. 12 - Imagine bringing the tips of your index fingers...Ch. 12 - Does the radius vector of Mars sweep out the same...

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