bigmomma00 bigmomma00
  • 09-09-2017
  • Chemistry
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describe how an equal-arm balance is made and how it works

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Adrian101
Adrian101 Adrian101
  • 09-09-2017
Two pans of equal weight are suspended from the beam, one at each end, at the fulcrum (a type of lever). A pointer on the right angles to the beam and leaver indicates zero on a scale when the beam is at rest, parallel  to a level surface.

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