Physics, 17.12.2019 18:31, organicmemez
Aspeaker at the front of a room and an identical speaker at the rear of the room are being driven at 456 hz by the same sound source. a student walks at a uniform rate of 1.02 m/s away from one speaker and toward the other. how many beats does the student hear per second? (take the speed of sound to be 343 m/s.) hint: the doppler effect causes both frequencies to be shifted. the difference between those two frequencies is what causes the beats. hz ( + 0.2 hz)
Answers: 2
Physics, 22.06.2019 14:30, darceline1574
Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil
Answers: 2
Physics, 23.06.2019 08:00, eduardo83124
Stephanie lives in california, and her cousin thomas lives in france. which coordinate system would be most useful if the two wanted to observe the same meteor shower and discuss their observations over online chat as they're making them? a. horizontal b. equatorial c. azimuth-altitude d. celestial or azimuth-altitude
Answers: 1
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