Find the center of mass of the particles with the given masses located at the given points.18 at (4.9, 0), 21 at (-9.8, 0), 37 at (2.5, 0), 40 at (-8.2, 0)
A. 
= 0.909, 
= 0
B. 
= 33.3, 
= 0
C. 
= -3.04, 
= 0
D. 
= -10.9, 
= 0
Answer: C
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A. 29 mi B. 3.8 mi C. 5 mi D. 7.6 mi
Set up, but do not evaluate, an integral for the area of the surface obtained by rotating the curve about the x-axis on the interval 1 ? x ? 5.
Differentiate.
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