Convince them that it isn't so by calculating how much weaker (in %) gravity is 420 km above the Earth's surface. Express your answer using three significant figures. The gravity is weaker by?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter13: Gravitation
Section: Chapter Questions
Problem 56P: Consider Figure 13.23 in Tidal Forces. This diagram represents the tidal forces for spring tides....
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Convince them that it isn't so by calculating how much weaker (in %) gravity is 420 km above the Earth's surface.
Express your answer using three significant figures.

The gravity is weaker by?

 

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