Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (2 cos t)i + (2 sin t)j, 0 ? t ? 
; 
A. Iz = 32
B. Iz = 0
C. Iz = 8
D. Iz = 32
Answer: D
Mathematics
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