Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 9 - Think and Discuss: 107

Answer

The mass of the Sun wouldn’t change as it collapsed to form a black hole. Also, the mass of the orbiting Earth, and the distance d between the CM of Earth and the CM of the sun wouldn't change. The gravitational force upon the Earth doesn't change, so its orbit remains the same.
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