A wave transports.... a.) energy b.) particles c.) vibrations d.) media
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A wave transports....
a.) energy
b.) particles
c.) vibrations
d.) media
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Solved in 2 steps
- 1. SKETCH AND TRANSLATE 2. SIMPLIFY AND DIAGRAM 3. REPRESENT MATHEMATICALLY 4. SOLVE AND EVALUATEA train whistle 2000 Hz sounds higher or lower in frequency depending on whether it approaches or recedes the observer. The difference between the two will be heard at the moment the train passes the observer. Calculate this difference for a train moving at a speed of 180 km/h. Take the speed of sound in air to be 330 m/s. State answer in hertz to the newest tenth of a hertzDoppler effect question: a police officer is not moving and uses a machine to measure the speed of a car approaching. The machine emits a sound wave with a frequency of 24333 Hz. The sound wave travels towards the car, and is reflected then comes back to the police officer. When it comes back, the machine then mesure the waves at a frequency of 27745 Hz. The sound speed is 334 m/s. In km/h, what is the speed of the car?