A radar emits microwaves with a frequency of 1.74x10^8 Hz, which propagate through the air at a speed of 2.998x10^8 m/s. After the reflection of the waves in a car approaching the emitter, this wave is detected with a difference of 418 Hz. How fast is the car?
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A radar emits microwaves with a frequency of 1.74x10^8 Hz, which propagate through the air at a speed of 2.998x10^8 m/s. After the reflection of the waves in a car approaching the emitter, this wave is detected with a difference of 418 Hz. How fast is the car?
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- There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers, Tango and Foxtrot, have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at it's landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at it's landing site, where has each rover landed?A source of sound of frequency 1200 Hz is moving away from a listener at speed v. The listener is at rest and hears a frequency of 1150 Hz. Given that the speed of sound is 343 m/s, what the value of v? 15 m/s 20 m/s 25 m/s 30 m/s 35 m/sA periodic wave of wavelength 2.07m and frequency 1.47Hz propagates along a string. What is the wave velocity in units of m/s?
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