A stationary observer hears an ambulance approaching her with a frequency of 310 Hz. After the ambulance passes her and is moving away she now hears a frequency of 292 Hz. The speed of sound is 343 m/s. Assuming the ambulance travels at a constant speed, what is that speed
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In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?
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A stationary observer hears an ambulance approaching her with a frequency of 310 Hz. After the ambul...
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