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Name: Sean
Status: student
Age: 12
Location: N/A
Country: N/A
Date: 1999 - 2000


Question:
Does the sun move at all? Does everything in the universe move?


Replies:
Sean -

Everything moves. When we want to analyze motion, though, we find it useful to assume that something is standing still. We call it a point of reference. Our most used (but not the only) frame of reference is the earth.

Larry Krengel



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