[Answered] A 4.0-m long pipe is closed at one end. Find the frequency of the second harmonic. The speed of ...

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Author Question: A 4.0-m long pipe is closed at one end. Find the frequency of the second harmonic. The speed of ... (Read 25 times)

kamilo84

Sr. Member
Posts: 495

on: Jul 29, 2018

A 4.0-m long pipe is closed at one end. Find the frequency of the second harmonic. The speed of sound is 340 m/s.

A)

170 Hz

B)

64 Hz

C)

85 Hz

D)

21 Hz

E)

57 Hz

Question 2

If the internal temperature of the sun is 15 x 106 K, what is the average kinetic energy of protons in this environment?

A)

0.040 eV
B)

1.3 keV
C)

1.9 keV
D)

1.3 MeV
E)

1.9 MeV

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Marked as best answer by a Subject Expert

jaaaaaaa

Sr. Member
Posts: 341

Reply #1 on: Jul 29, 2018

Answer to Question 1

B

Answer to Question 2

C

kamilo84

Member
Posts: 495

Reply 2 on: Jul 29, 2018

Excellent

lcapri7

Member
Posts: 350

Reply 3 on: Yesterday

Gracias!

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