Calculus 10th Edition
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55
| PAGE: 496 | SET: Exercises | PROBLEM: 55 |
Please look in your text book for this problem Statement
The equations are 
and 
.
The surface area of the sphere is 
.
The arc length of 
is 
.
The distance traveled by the centroid is 
.
Substitute 
and 
.
.
The circumference of the circle of radius 
is 
.
The distance traveled by the centroid is equal to the circumference of the circle.
.
Therefore, the centroid of the semicircle is 
.
.
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