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Author Question: A mercury thermometer has a bulb of volume 0.100 cm3 at 10.C. The capillary tube above the bulb has ... (Read 104 times)

joblessjake

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on: Jul 27, 2018
A mercury thermometer has a bulb of volume 0.100 cm3 at 10.C. The capillary tube above the bulb has a cross-sectional area of 0.012 mm2.
 
  The volume thermal expansion coefficient of mercury is 1.80  10-4 K-1. How much will the mercury rise when the temperature rises to 30.C?

Question 2

A metal sphere of radius 80. mm is charged to a potential of -0.50 kV. With what velocity must an electron be fired toward the sphere if it is to just barely reach the sphere when started from a position 15. cm from the center of the sphere?
 
  What will be an ideal response?


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carolinefletcherr

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Reply #1 on: Jul 27, 2018
Answer to Question 1

3.0 cm

Answer to Question 2

9.0  106 m/s


joblessjake

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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