UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 23, Problem 47Q
To determine
The orbital period of the star which is
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Chapter 23 Solutions
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
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- If the diameter of the Milky Way Galaxys visible disk, 80,000 ly, is represented in a model by a dinner plate with a diameter of 10 inches, what is the model distance to galaxy M31, 2.6 millionly away? What is the model distance to the Virgo galaxy cluster, 16 Mpc away? (Convert answers to feet.)arrow_forwardA galaxy's velocity is measured to be 3112 kilometers per second away from us. What is the distance from us to that galaxy, in units of Megaparsecs (Mpc)? If the value of the Hubble constant is 70 kilometers per second per Mpc.arrow_forwardA star, which is 2.1 x 1020 m from the center of a galaxy, revolves around that center once every 2.8 x 108 years. Assuming each star in the galaxy has a mass equal to the Sun's mass of 2.0 x 1030 kg, the stars are distributed uniformly in a sphere about the galactic center, and the star of interest is at the edge of that sphere, estimate the number of stars in the galaxy.arrow_forward
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