The upper end of a vertical steel wire 4mm diameter and 2,5 m long is held...

The upper end of a vertical steel wire 4mm diameter and 2,5 m long is held securely. The other end is fixed central to a steel cylinder, 80 mm diameter and of density 7,8 Mg/m3, arranged with its axis vertically. Determine the length of the cylinder to give 0,6 torsional vibration per second.

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samet mamat answered 3 years ago

a .25 mm diameter wire .2 m long is to be held at 1035 deg C....

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A 400-W cylindrical resistance heater is 1 m long and 0.5-cm-diameter. The resistance wire is placed...

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