Our Solar System is about 8.3 kpc from the centre of our galaxy. Using Newton's Universal Gravitation Law and Kepler's Third Law, calculate the approximate mass of our Milky Way if we know that the orbital velocity of the Sun around the centre of the galaxy is 225 km/s. (Hint: Use the formula for orbital velocity: v = GM and problem , r Note: G is the Universal Gravitation Constant, G = 6.67 × 10-11 m3 1 kpc kg s2' 3.1 x 1016 m. Also, pay attention to units!!! – i.e. orbital 1000 рс апd 1 рс %3D velocity is in km/s and the universal gravitation constant is in m3 kgsz a) 8.7 x 1035 kg 1kg b) 2.0 x 1041 c) 2.0 x 1030 kg d) 6.0 x 1024 kg

Our Solar System is about 8.3 kpc from the centre of our galaxy. Using Newton's Universal Gravitation Law and Kepler's Third Law, calculate the approximate mass of our Milky Way if we know that the orbital velocity of the Sun around the centre of the galaxy is 225 km/s. (Hint: Use the formula for orbital velocity: v = GM and problem , r Note: G is the Universal Gravitation Constant, G = 6.67 × 10-11 m3 1 kpc kg s2' 3.1 x 1016 m. Also, pay attention to units!!! – i.e. orbital 1000 рс апd 1 рс %3D velocity is in km/s and the universal gravitation constant is in m3 kgsz a) 8.7 x 1035 kg 1kg b) 2.0 x 1041 c) 2.0 x 1030 kg d) 6.0 x 1024 kg

Stars and Galaxies (MindTap Course List)

10th Edition

ISBN:9781337399944

Author:Michael A. Seeds

Publisher:Michael A. Seeds

Chapter15: The Milky Way Galaxy

Section: Chapter Questions

Problem 10P

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