1.) For sinusoidal vibrations the lowest pitched bass sounds audible to humans h

Question

1.) For sinusoidal vibrations the lowest pitched bass sounds audible to humans have wavelengths of about a.) 2 cm b.) 20 m c.) 1 Hz d.) 20 Hz e.) 20,000 Hz 2.) On a day when the temperature of the air is independent of altitude and the wind is blowing to the east, a second wave initially travelling horizontally to the east gradually bends a.) north b.) south c.) east d.) up away from the ground e.) down toward the ground 3.) The bending in the preceding question is an example of a.) rarefaction b.) refraction c.) diffraction d.) beats e.) Doppler effect 4.) Bass sounds from a loudspeaker spread out a.) more than treble sounds b.) less than treble sounds c.) dame spreading for bass and treble 5.) The spreading in the preceding question is an example of a.) rarefaction b.) refraction c.) diffraction d.) beats e.) Doppler effect

Explanation / Answer

d c e b a

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