Hook's Law Apparatus ‘PSAW’ |
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| Hook's Law Apparatus ‘PSAW’
(1084 ) |
| It consists of a support with mounted millimeter scale, a spiral spring, a hanger for weights. The scale is 12cm long, engraved on a plane mirror to permit parallax illumination by reflection and mounted with elevation adjustment on a support rod. The steel spring 1cm in diameter and 3 cm long when unstretched is suspended from a hook above the scale. Weights not included
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