If the Sun were to be instantly replaced by a 1 M_SUN black hole, the gravitational pull of the black hole on Earth would be A) much greater than it is now. B) the same as it is now. C) much smaller than it is now. D) larger or smaller, depending on the location of the Moon. E) irrelevant, because Earth would quickly fall into the Sun and be destroyed.

Question

Quizplus · Accepted Answer

The gravitational pull depends on mass and distance. Since the black hole would have the same mass as the Sun and the distance remains unchanged, the gravitational pull on Earth would be the same.

If the Sun Were to Be Instantly Replaced by a 1