Physics, 19.10.2019 00:00 phancharamachasm
Asource and observer are moving relative to one another: one is at rest, and the other is moving at some speed less than the speed of sound (the goal of the problem is to figure out who is moving). the source emits sound waves at frequency fo, but the observer detects the sound at frequency 3fo. what is the wavelength of the sound waves, as measured by a third person who is at rest and is located somewhere between the source and receiver? your answer will have v (the speed of sound) as well as check to make sure that the combination you write down has the right dimensions/units for length/meters.
Answers: 1
Physics, 22.06.2019 22:00
Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
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Compare the patterns of the two waves shown in the image. which statement is true about these waves?
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Physics, 23.06.2019 05:30
Aman jogs at a velocity of 2.5 m/s west for 1,200 s. he then walks at a velocity 1.0 m/s east for 500 s and then stops to rest . what is the displacement of man when he stops to rest?
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