Figure 13-52 is a graph of the kinetic energy K of an

Chapter 13, Problem 73

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Figure 13-52 is a graph of the kinetic energy K of an asteroid versus its distance r from Earth's center, as the asteroid falls directly in toward that center. (a) What is the (approximate) mass of the asteroid? (b) What is its speed at r = 1.945 X 107 m? 3 lL-~~~~ __ ~~-L-L-L~~~~~~~~ 1.75 1.85 1. 95 r (107 111) Fig. 13-52 73.

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