Saturday
March 28, 2015

Homework Help: Physics

Posted by Zack on Monday, August 10, 2009 at 6:41pm.

GPS can be used to determine positions with great accuracy. The system works by determining the distance between the observer and each of the several satellites orbiting Earth. If one of the satellites is at a distance of 20,000 km from you, what percent accuracy in the distance is required if we desire a 2-meter uncertainty? How many significant figures do we need to have in the distance?

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