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Rotating System on Air Bed (115 V, 50/60 Hz)
Rotating System on Air Bed (115 V, 50/60 Hz)






 
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Retail Price $1,116.00


Product Code: 3B-U8405680-115
Item no longer available

Description
 

Apparatus for investigating frictionless rotation. A small rotating disc with a protractor scale supports a cross bar to which weights can be attached. The disc is supported by a bed of air in which its axis is centered. A driving weight is suspended from a hook at the end of a string that is passed over a single pulley on one side and a multiple pulley on the other. The rotation is very slow and can be measured using a stopwatch by hand. Alternatively, a digital timer may be used. This can be started by a mechanism that is supplied with the kit and halted by a signal from a laser reflection sensor when the wheel passes through angle zero.

Experiment topics:

  • Rotational motion: uniform and under constant acceleration
  • Newton's equations of motion for rotational motion
  • Moment of inertia and torque
  • Moment of inertia as determined by experiment
  • Simple harmonic motion of rotating objects
Specifications:
  • Protractor scale: 0 - 360
  • Scale divisions: 1
  • Length of cross bar: ca. 440 mm
  • Radii of perforations: 30 - 210 mm
  • Separation of perforations: 20 mm
  • Radii of multiple pulley: 5.0 mm/10.0 mm/15.0 mm
  • Moment of inertia of
  • disc with cross bar: 0.16 g m2 approx.
  • Maximum moment of inertia: 7.1 g m2 approx.
  • Minimum driving torque: 0.05 mN m approx.
  • Maximum driving torque: 0.60 mN m approx.
Contents:
  • 1 Air bed
  • 1 Rotating disc with cross bar
  • 1 Multiple pulley
  • 1 Release mechanism
  • 2 S-shaped hooks 1.00g
  • 1 S-shaped hook 2.00 g
  • 1 Set of weights (2x 12.5 g, 2x 25 g, 2x 50 g)
  • 1 Compressor for connection to mains
  • 1 Silicon tubing with by-pass valve (not illustrated)
  • 1 Pulley
  • 1 Stand rod with 3 securing screws and 2 screws for leveling
  • 1 Stand rod with 2 securing screws
  • 1 Stand rod, 250 mm
  • 1 Leveling disc
  • 1 Roll of cotton thread


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