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Binary StarDifferent Masses. Two stars, with masses M1 and

University Physics with Modern Physics (1) | 14th Edition | ISBN: 9780321973610 | Authors: Hugh D. Young Roger A. Freedman ISBN: 9780321973610 228

Solution for problem 13.64 Chapter 13

University Physics with Modern Physics (1) | 14th Edition

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University Physics with Modern Physics (1) | 14th Edition | ISBN: 9780321973610 | Authors: Hugh D. Young Roger A. Freedman

University Physics with Modern Physics (1) | 14th Edition

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Problem 13.64

Binary StarDifferent Masses. Two stars, with masses M1 and M2, are in circular orbits around their center of mass. The star with mass M1 has an orbit of radius R1; the star with mass M2 has an orbit of radius R2. (a) Show that the ratio of the orbital radii of the two stars equals the reciprocal of the ratio of their massesthat is, R1>R2 = M2>M1. (b) Explain why the two stars have the same orbital period, and show that the period T is given by T = 2p1R1 + R223>2>1G1M1 + M22. (c) The two stars in a certain binary star system move in circular orbits. The first star, Alpha, has an orbital speed of 36.0 km>s. The second star, Beta, has an orbital speed of 12.0 km>s. The orbital period is 137 d. What are the masses of each of the two stars? (d) One of the best candidates for a black hole is found in the binary system called A0620-0090. The two objects in the binary system are an orange star, V616 Monocerotis, and a compact object believed to be a black hole (see Fig. 13.28). The orbital period of A0620-0090 is 7.75 hours, the mass of V616 Monocerotis is estimated to be 0.67 times the mass of the sun, and the mass of the black hole is estimated to be 3.8 times the mass of the sun. Assuming that the orbits are circular, find the radius of each objects orbit and the orbital speed of each object. Compare these answers to the orbital radius and orbital speed of the earth in its orbit around the sun.

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PH 101- Week 2 Notes 3 basic quantities to describe the motion of some system 1. Displacement- length, vector quantity (has direction/sign) a. x=x -2 1 t=t 2t 1 2. Velocity- rate at which position is changing with time; units of length/time (m/s) a. Average velocity v(overline)=x/t =(x -x )2(t1-t 2 1 b. Position-time plot (slope=average velocity) c. x=v(overline)t d. Instantaneous velocity: velocity at some instance i. Magnitude of instantaneous speed e. Suppose you want to take the instantaneous velocity at t 1 i. Slope of the tangent line at t=t 1 ii. =lim xf-x1 tft1 f -1 v=lim x -x 2 1 t2t 1 -2

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Chapter 13, Problem 13.64 is Solved
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Textbook: University Physics with Modern Physics (1)
Edition: 14
Author: Hugh D. Young Roger A. Freedman
ISBN: 9780321973610

The full step-by-step solution to problem: 13.64 from chapter: 13 was answered by , our top Physics solution expert on 01/09/18, 07:46PM. The answer to “Binary StarDifferent Masses. Two stars, with masses M1 and M2, are in circular orbits around their center of mass. The star with mass M1 has an orbit of radius R1; the star with mass M2 has an orbit of radius R2. (a) Show that the ratio of the orbital radii of the two stars equals the reciprocal of the ratio of their massesthat is, R1>R2 = M2>M1. (b) Explain why the two stars have the same orbital period, and show that the period T is given by T = 2p1R1 + R223>2>1G1M1 + M22. (c) The two stars in a certain binary star system move in circular orbits. The first star, Alpha, has an orbital speed of 36.0 km>s. The second star, Beta, has an orbital speed of 12.0 km>s. The orbital period is 137 d. What are the masses of each of the two stars? (d) One of the best candidates for a black hole is found in the binary system called A0620-0090. The two objects in the binary system are an orange star, V616 Monocerotis, and a compact object believed to be a black hole (see Fig. 13.28). The orbital period of A0620-0090 is 7.75 hours, the mass of V616 Monocerotis is estimated to be 0.67 times the mass of the sun, and the mass of the black hole is estimated to be 3.8 times the mass of the sun. Assuming that the orbits are circular, find the radius of each objects orbit and the orbital speed of each object. Compare these answers to the orbital radius and orbital speed of the earth in its orbit around the sun.” is broken down into a number of easy to follow steps, and 271 words. This textbook survival guide was created for the textbook: University Physics with Modern Physics (1), edition: 14. University Physics with Modern Physics (1) was written by and is associated to the ISBN: 9780321973610. This full solution covers the following key subjects: . This expansive textbook survival guide covers 44 chapters, and 4574 solutions. Since the solution to 13.64 from 13 chapter was answered, more than 462 students have viewed the full step-by-step answer.

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