The displacement from equilibrium of an object in harmonic motion on the end of a spring is
, where y is measured in feet and t is the time in seconds. Determine the velocity of the object when
. Round your answer to two decimal
places.
?
A. 8.46 ft/sec
B. 3.74 ft/sec
C. 6.46 ft/sec
D. 2.46 ft/sec
E. 3.87 ft/sec
Answer: C
Mathematics
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Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 8
, y = 8, and x = 0 about the y-axis
A. 
?
B. 
?
C. 
?
D. 
?
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Find two paths of approach from which one can conclude that the function has no limit as (x, y) approaches (0, 0).f(x, y) = 
What will be an ideal response?
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Solve using Cramer's Rule.
A. (3, -1, 7) B. (2, 1, 7) C. (2, -1, -7) D. (1, 7, 1)
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Perform the indicated operation. Assume that all variables are nonnegative.3
- 7
A. 4
B. -4
C. -4
D. 10
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