In a binary star system, the average separation between the stars is 5 AU and their orbital period is 4 years. What is the sum of their masses? (Enter your answer in terms of the mass of the Sun.) 781 v Msun The average distance of Star A from the center of mass is 5 times that of Star B. What are their individual masses? (Enter your answers in terms of the mass of the Sun.) Star A How are the distances of each star from the center of mass related to their masses? Meun Star B Be sure you are entering the mass of Star B here. M

In a binary star system, the average separation between the stars is 5 AU and their orbital period is 4 years. What is the sum of their masses? (Enter your answer in terms of the mass of the Sun.) 781 v Msun The average distance of Star A from the center of mass is 5 times that of Star B. What are their individual masses? (Enter your answers in terms of the mass of the Sun.) Star A How are the distances of each star from the center of mass related to their masses? Meun Star B Be sure you are entering the mass of Star B here. M

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Problem Set on Binary Systems: 1.Consider two stars in orbit about a mutual center of mass. If a1 is the semimajor axis of the orbit of star of mass m, and a, is the semimajor axis of the orbit of star of mass m2, prove that the semimajor axis of the orbit of the reduced mass is given by a = a, + a2. points)
answer only letter b
What is the radius event horizon for Cygnus-X1? a. 21 m b. 21 km c. 21 21 au d. 21 light years
What is the total mass of a binary star system with P = 20 years and a = 10 AU? a. 2 solar masses b. 2.5 solar masses c. 0.5 solar mass d. 80 solar masses e. 0.4 solar mass
Consider a neutron star as a very dense sphere of matter. Assuming that the star has a mass of 1*(mass of sun) and a radius of 0.05*(radius of sun), then how much would a 85.1 kg person weigh on the surface of this star? (enter your answer in Newtons). See the test reference sheet for applicable constants. HINT: Remember what we learned about the force of gravity and the gravitational field (Ch. 13 of the textbook)
A planet is detected at 0.5" from its star. The star is 10 parsecs away. How many AU from its star is the planet?
Listed below are several fictional stars with their luminosities and distances from Earth given. Rank the stars based on how bright each would appear in the sky as seen from Earth, from brightest to dimmest. using the formula Lumionisty/4πd^2 A) Q-bert: L=400Lsun, d=40ly B) Frogger: L=400Lsun, d=20ly C) Centipede: L=200Lsun, d=10ly D) Galaga: L=100Lsun, d=8ly E) Pacman: L=200Lsun, d=20ly
Which of the following most correctly explains why we have not yet observed any white dwarfs derived from M stars: Group of answer choices Most M stars end up as neutron stars or black holes. The lifetime of M stars is longer than the age of the universe. Most M stars are located near the edge of the universe, beyond the visible horizon. Most M stars are members of a binary system, and the white dwarf would be obscured by the glare of the more massive companion. White dwarfs are too dim to be observed with currently available techniques.
Use this interactive simulation of stellar parallax. Change the distance to the star to values given in column 2. Write down the parallax angle in arcsec for each distance. Convert the parallax angle to radians. Calculate the distance. If your calculation is correct, your number in the last column should be similar to the number in column 2 (NOT THE SAME!). 1 AU is 4.85 x 10-6 pc (Don't write units with your answer!) Measured (true) Parallax angle n (in radians) (use 2 significant D (round your answer to 2 figures) Calculated distance Object Parallax angle (in arcsec) Distance from Position "Sun" in pc decimal places) Nearest 0.5 Intermediate 1 Farthest 1.5
At the distance of Earth, 1AU, the Sun's apparent brightness in the sky is about 1250 W/m 2 . What is the brightness that we would measure from a distance of 0.5 AU? What is the brightness that we would measure from a distance of 2.0 AU?
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