At an air show a jet flies directly toward the stands at a speed of 1200km/h, emitting a frequency of 3500Hz, on a day when the speed of sound is 342m/s. What is the frequency received by stationary observers?
At an air show a jet flies directly toward the stands at a speed of 1200km/h,...
(a) At an air show a jet flies directly toward the stands at a speed of 1170 km/h, emitting a frequency of 3960 Hz, on a day when the speed of sound is 342 m/s. What frequency (in Hz) is received by the observers? ____________Hz (b) What frequency (in Hz) do they receive as the plane flies directly away from them? ____________Hz
An airplane flies at a speed of 300 km/h directly northward relative to the air. The wind is blowing at 20m/s toward the southwest. What is the velocity of the plane relative to the ground? Please provide a diagram.
Bats use the Doppler effect to determine their location. A bat flies toward a wall at a speed of 15 m/s while emitting sound of frequency 35 kHz. What is the frequency received by the bat? (hint: 2 doppler effects occur)
A supersonic jet traveling at Mach 2.10 at an altitude of h 18,000 m is directly over a person at timet-o as shown in the figure below. Assume the average speed of sound in air is 335 m/s over the path of the sound. Observer hears the "boom" Observer (a) At what time will the person encounter the shock wave due to the sound emitted at t02 (b) Where will the plane be when this shock wave is heard?
A supersonic jet traveling at Mach 2.00 at an altitude of h=23,000 m is directly over a person at time t=0 as shown in the figure below. Assume the average speed of sound in air is 335 m/s over the path of the sound. a) At what time will the person encounter the shock wave due to the sound emitted at t=0 in s b) Where will the plane be when this shock wave is heard? Give the plane's horizontal...
Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 28.0 m/s. Both screech, the first one emitting a frequency of 2700 Hz and the second one emitting a frequency of 3800 Hz. What frequencies (in Hz) do they receive if the speed of sound is 330 m/s? first eagle Hzsecond eagle Hz
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1060 Hz. The bird-watcher, however, hears a frequency of 1110 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1480 Hz. The bird-watcher, however, hears a frequency of 1510 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
A rescue plane flies horizontally at a constant speed searching for a disabled boat. When the plane is directly above the boat, the boat's crew blows a loud horn. By the time the plane's sound detector perceives the horn's sound, the plane has traveled a distance equal to two-thirds its altitude above the ocean. (a) If it takes the sound 2.10 s to reach the plane, determine the speed of the plane. Take the speed of sound to be 343...
As a bat flies toward a wall at a speed of 6.0 m/s, the bat emits an ultrasonic sound wave with frequency 30.0 kHz. What frequency does the bat hear in the reflected wave? Ship A is traveling 20 m/s due east. Ship B is traveling 15 m/s due west away from Ship A. Ship A sounds a horn with a frequency of 1500 Hz. What frequency does an observer on Ship A hear in the reflected wave from Ship...