Oscillating Weight
October 27th, 2009
Oscillating Weight
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 Vacheron Constantin part 1143 Oscillating Weight  US $300.00
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 Zenith Oscillating weight El Primero 3019 400 serie US $220.00
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 Rolex 1530 Oscillating Weight Rotor Part NOS US $150.00
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 ETA 2892 A2 Watch Breitling oscillating weight 1143 US $150.00
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 ETA 2892 A2 Watch Tag HEUER oscillating weight 1143 US $150.00
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 ETA 2892 A2 Watch Breitling oscillating weight 1143 US $125.00
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 Rolex 2030 Oscillating weight part 4474 watch movement US $95.00
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 NEW ROLEX PART 1530 7906 AXLE FOR OSCILLATING WEIGHT US $75.00
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 Vintage Le Coultre cal 916 Oscillating Weight part US $75.00
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 used Universal Geneve 218 arbor for oscillating weight US $75.00
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 used Universal Geneve 218 oscillating weight US $70.00
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 Rolex part caliber 2030 Axle for oscillating weight US $60.00
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 NEW ROLEX cal 3135 568 axle for oscillating weight US $50.00
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 New oscillating weight Fontomatic Swiss patent US $40.00
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 Rolex 3135 spring clip oscillating weight 3135 560 3 US $28.00
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 used Universal Geneve 218 lock for oscillating weight US $25.00
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 LECOULTRE 481 OSCILLATING WEIGHT JEWEL PART 1642 US $15.00
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 Longines 350 Automatic Rotor Oscillating Weight 12 L US $12.50
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 Axle for Oscillating Weight to fit Caliber 1530 US $12.00
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 Pinion for Oscillating Weight to fit caliber 2130 US $12.00
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 Auto Axle for Oscillating Weight to fit Caliber 2130 US $12.00
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 OSCILLATING WEIGHT FOR AS 1916 OR 2066 WATCH PARTS US $9.95
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 Spring Clip for Oscillating Weight to fit Caliber 1530 US $6.00
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 Oscillating weight lower Jewel for Caliber 1530 US $6.00
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 Jewel for Oscillating weight upper to fit 1530 US $6.00
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 Spring Clip for Oscillating Weight to fit Caliber 2130 US $6.00
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 OMEGA OSCILLATING WEIGHT AND BEARING CALIBER 1110 US $5.00
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what is his speed of A moving observer?
The period of an oscillating weight on a spring measures in a laboratory on earth is 1.80s. A moving observer measures its period as 2.20s. what is his speed(c=3.00x10^8m/s)
Answer 1.72x10^8m/s
i am not sure how to solve this one
Time dilation:
the time for the moving observer is gamma * the proper time.
gamma = 1 / sqrt (1 - (v/c)^2) = observed time / proper time
Solve for your speed:
v = c sqrt (1 - (proper time / observed time)^2)
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