1. A 40 cm wire produces a fundamental note of 250vps when a
load of 40 grams is
applied. If the length of the wire is reduced by 10 cm., what load
would it carry in
order to vibrate at the 3rd overtone of a 300 vps.?
2. A rod, 1 cm2 x 200 cm and mass 2 kg, is clamped at its center.
When vibrating
longitudinally it emits its third overtone in unison with a tuning
fork making 6000 vps.
How much will the rod be elongated if, when clamped at one end, a
stretching
force of 980 N is applied to the other end?
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