A torsion pendulum with a vanadium wire containing nitrogen, and a period of 2.00 seconds, shows a decrease in the pendulum amplitude, A, of 10 percent in 100 cycles of oscillation at 350 K. Compute:

(a) The specific damping capacity.
(b) The logarithmic decrement.
(c) tan ?, where ? is the phase angle by which the strain lags the stress.


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