What frequency of sound is observed if the 449 Hz source is traveling away from a stationary observer at a speed of 24.8 m/s? (assume the speed of sound in air is 343 m/s) Number Units

the speed of sound in stationary air vs=330m/s, a train leaves the station with a speed of u=30m/s, a person on the platform blows a whistle. A) determine the speed of sound produced by the whistle as measured by a person on the train. b) determine the speed of sound produced by the whistle as measured by a person on the platform.

A state trooper chases a speeder along a straight stretch of road; both vehicles move at 137 km/h. The siren on the tropper's vehicle produces a sound of 564 Hz. What frequency is heard by speeder? (Take the speed of sound in air to be 343 m/s.) Number Units

What frequency of sound is observed if the 444 Hz source is traveling away from a stationary observer at a speed of 30.2 m/s? (assume the speed of sound in air is 343 m/s)

The frequency of whistle by a moving train and the frequency heard by a stationaryobserver are 710 Hz and 650 Hz respectively. If the speed of sound in the air is 340 m s-1, calculate the speed of the train.

A dolphin in seawater at a temperature of 25°C emits a sound wave directed toward the ocean floor 138 m below. How much time passes before it hears an echo? (The speed of sound in ocean water is 1533 m/s.) Additional Materials O eBook Stephen Frink/Pho tographer's Choice/Getty Images

A group of hikers hears an echo 2.60 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 349 m/s.) m

Ther is a sound source that produces a sound with the frequency f=737 Hz. This sound source is moving at the  speed of v2= 5.8m/s and an observer is movingat the speed v1=3.2 m/s  What is the frequency of the sound that the pbserver hears when the sound source and the observer are moving toward each other? Use 343 m/s for the speed of the sound in the air.