{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

gravitysolution

This preview shows pages 1–2. Sign up to view the full content.

Answers to the "Astronomy Ranking Task: Gravity": There is no Exercise #2. Exercise #1: Part A: DBCA. Recall that the force depends on the product of the masses that you care about. This question is not asking about the acceleration of these objects if they were to fall from a height down to the ground. If that were the question, then all accelerations would be the same. This question is about force, though. And since all 4 objects are the same distance from the center of Earth, the force just depends on the product of the 2 masses. One of the masses in each case is Earth, and that's constant, so it comes down to the mass of the 4 individual objects. Part B: DBCA, same as Part A. Recall that the force depends on the product of the masses -- so it doesn't matter which object you call mass #1 and which you call mass #2. They are interchangeable. So the force is interchangeable. It's kind of a profound thing to think about, that you exert as much force on Earth as Earth does on you.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}