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galaxy's center but 1

galaxy's center but 1

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Part B Your friend found this mass by looking at stars orbiting at a distance 19 kpc from that galaxy's center but forgot the rotation speed they used. Good for your friend, you know how to convert things into other units and know that there are 3.09x10¹6 km in one kiloparsec (kpc). Convert this distance to km. Express your answer using two significant figures. distance 5.9x1017 km Submit Previous Answers Part C Correct Using the relationship between mass, rotational speed, and distance, help your friend out and find the rotational speed of those stars. The gravitational constant G = 6.67*10-23 km³/g/s² and remember to use your r in km and mass in grams. VAΣ ΜΕ ΑΣΦ ? rotational speed = Submit Previous Answers Request Answer km/s
Transcribed Image Text:Part B Your friend found this mass by looking at stars orbiting at a distance 19 kpc from that galaxy's center but forgot the rotation speed they used. Good for your friend, you know how to convert things into other units and know that there are 3.09x10¹6 km in one kiloparsec (kpc). Convert this distance to km. Express your answer using two significant figures. distance 5.9x1017 km Submit Previous Answers Part C Correct Using the relationship between mass, rotational speed, and distance, help your friend out and find the rotational speed of those stars. The gravitational constant G = 6.67*10-23 km³/g/s² and remember to use your r in km and mass in grams. VAΣ ΜΕ ΑΣΦ ? rotational speed = Submit Previous Answers Request Answer km/s
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