What is the bridges total expansion if the

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What is the bridge’s total expansion if the temperature changes from 0 Celsius to 40 Celsius.
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4) When a mercury thermometer is placed in hot water, the level of the mercury initially drops before it begins to rise. Why? The mercury level drops due to the container it is in. An example is the glass thermometer tube which expands before the mercury does. Discussion : When comparing our experimental values with the accepted values, it is obvious that some errors occurred during the lab procedure. Our experimental values were consistently higher than the accepted ones, with percentage discrepancies ranging from 9% to 45%. These errors are pretty big, and from their relationship to the accepted values we can start to see where the errors might have come from. First, using the gauge provided, it was difficult to judge exactly when expansion had stopped. This means that the temperature measurements are likely higher than they ought to be because the setup continued to undergo heating, even after expansion ceased. Additionally, the dial on the gauge and the digital values for resistance were sensitive, so obtaining a steady result was a little bit impossible. Lastly, in between each trial, the setup was supposed to be allowed to return to room temperature, but due to time constraints, there was still residual heat left in the system for each trial.
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  • Spring '12
  • Dr.Phaneuf
  • Physics, Thermodynamics, Test method, Golden Gate Bridge, experimental values, steam generator

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