Need help with the physics problem below! Please show which equations you use so I can...
Need help with the physics problem below! Please show which equations you use so I can better understand the concepts.
Two speakers are connected to a 400 Hz oscillator. One speaker is placed at one end of the street, and the other is placed at the other end of the street. You are standing in the middle of the street, right between the two speakers.(Speed of sound is 343 m/s)
(a) What is the spacing between the nodes in the standing wave created by the speakers?
(b) How fast do you need to run toward one of the speakers in order to hear the Doppler-shifted sounds from the two speakers beat at a rate of 1.5 beats per second?
(c) Show that the answer you found in (b) is precisely the speed you need to run in order to pass 1.5 nodes per second.
(d) If you measure the sound level from one speaker at a distance of 30 m from the speaker and find it to be 79.2 dB, what sound level will you measure when you are 10 meters from it?
Thank You!
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because I am trying to get ahead. Any suggestions?
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