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Author Question: The variation in the pressure of helium gas, measured from its equilibrium value, is given by DP = ... (Read 32 times)

stephzh

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on: Jul 28, 2018
The variation in the pressure of helium gas, measured from its equilibrium value, is given by DP = 2.9  10-5 cos (6.20x - 3 000t) where x and t have units m and s. Determine the speed (in m/s) of the wave.
 a. 1 515
  b. 153
  c. 484
  d. 828
  e. 101

Question 2

The variation in the pressure of helium gas, measured from its equilibrium value, is given by DP = 2.9  10-5 cos (6.20x - 3 000t) where x and t have units m and s, and DP is measured in N/m2 . Determine the wavelength (in m) of the wave.
 a. 1 500
  b. 0.32
  c. 477
  d. 1.01
  e. 0.50


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emilymalinowski12

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


stephzh

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Reply #2 on: Jul 28, 2018
Thanks


emilymalinowski12

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Reply #3 on: Jul 28, 2018
Welcome :)


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