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Author Question: Drummers like to have high-pitched cymbals that vibrate at high frequencies. To obtain the highest ... (Read 238 times)

123654777

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on: Jul 28, 2018
Drummers like to have high-pitched cymbals that vibrate at high frequencies. To obtain the highest frequencies, a cymbal of a fixed size should be made of a material
 a. with a low Young's modulus and a low density.
  b. with a low Young's modulus and a high density.
  c. with a high Young's modulus and a low density.
  d. with a high Young's modulus and a high density.
  e. composed of a metal-plastic laminate.

Question 2

A harmonic longitudinal wave propagating down a tube filled with a compressible gas has the form s(x, t) = sm cos (kx  t). Its velocity can be obtained from
 a. /k
  b. k/
  c. k
  d.
  e. k


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katara

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

c

Answer to Question 2

a


123654777

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Reply 2 on: Jul 28, 2018
Gracias!

nguyenhoanhat

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

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