20. Consider two pipes of the same length: one pipe is open at both ends and the other pipe is closed on one end but open at the other end. If the fundamental frequency of the pipe open at both ends is 200 Hz, what is the fundamental frequency of the other pipe? A. 100 Hz B. 200 Hz C. 300 Hz D. 400 Hz E. 800 Hz
20. Consider two pipes of the same length: one pipe is open at both ends and the other pipe is closed on one end but open at the other end. If the fundamental frequency of the pipe open at both ends is 200 Hz, what is the fundamental frequency of the other pipe? A. 100 Hz B. 200 Hz C. 300 Hz D. 400 Hz E. 800 Hz
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Please solve 22
Transcribed Image Text:B. four times as intense as a sound of 20 dB
C. 10 tímes as intense as a sound of 20 dB
D. 100 times as intense as a sound of 20 dB
E. 1000 times as intense as a sound of 20 dB
20. Consider two pipes of the same length: one pipe is open at both ends and the other pipe is
closed on one end but open at the other end. If the fundamental frequency of the pipe open at
both ends is 200 Hz, what is the fundamental frequency of the other pipe?
A. 100 Hz
B. 200 Hz
С. 300 Hz
D. 400 Hz
E. 800 Hz
21. What can you say about Coulomb forces between two charges +1uC and +2µC separated by
the distance 1 um
A. The forces are directed along the line connecting two charges
B. The forces are repulsive
C. The forces would increase if we decrease the distance between these two charges
D. The forces of gravity between charges are weaker than the Coulomb forces
E. All of the above is correct
22. What is the magnitude of the electric field directed up that will balance the weight of a
charge +3.0 nC with the mass 3 g ?
A. 1.9 x 10° N/C
B. 4.9 x 10 N/C
C. 9.8 x 10° N/C
D. 0.9 x 10° N/C
E. 0.5 x 10° M
23. Two identical light bulbs consume 60 W of the total average power when plugged in
AC outlet being connected in series. What is the resistance of one light bulb?
A. 302
В. 60 2
C. 1202
D. 240 2
E. 480 2
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