A bat at rest sends out ultrasonic sound waves at 51.5 kHz and receives them returned from an object moving directly away from it at 31.0 m/s .What is the received sound frequency?
A bat at rest sends out ultrasonic sound waves at 51.5 kHz and receives them returned...
A bat at rest sends out ultrasonic sound waves at 50.5 kHz and receives them returned from an object moving directly away from it at 34.5 m/s . What is the received sound frequency?
A bat at rest sends out ultrasonic sound waves at 54.6 kHz and receives them returned from an object moving directly away from it at 24.7 m/s . What is the received sound frequency?
A bat at rest sends out ultrasonic sound waves at 50.5 kHz and receives them returned from an object moving directly away from it at 34.0 m/s . Part A What is the received sound frequency?
A bat at rest sends out ultrasonic sound waves at 54.8 kHz and receives them returned from an object moving directly away from it at 23.8 m/s. What is the received sound frequency? Please answer in Hz and the answer is not 40,000 Hz.
The motion detector used in a physics lab sends and receives 30 kHz ultrasonic pulses. A pulse goes out, reflects off the object being measured, and returns to the detector. The lab temperature is 20 ∘C. Part A) What is the wavelength of the waves emitted by the motion detector? Express your answer in millimeters. Part B) How long does it take for a pulse that reflects off an object 3.0 m away to make a round trip? Express your...
The motion detector used in a physics lab sends and receives 45 kHz ultrasonic pulses A pulse goes out, reflects off the object being measured, and returns to the detector. The lab temperature is 20 degree C. What is the wavelength of the waves emitted by the motion detector? Express your answer using two significant figures. How long does it take for a pulse that reflects off an object 2.2 m away to make a round trip? Express your answer...
A bat searching for prey emits sound at 90 kHz. The bat flies at 9.0 m/s. The sound emitted by the bat reaches a moth at rest. What frequency is the sound once it reaches the moth? Take the speed of sound in air to be 343 m/s. The moth now flies away at 2 m/s. What is the difference between the frequency that originally reached the still moth and the frequency reaching the moving moth? answer to second part...
The frequency separating audible waves and ultrasonic waves is considered to be 20 kHz. What wavelength in air at room temperature is associated with this frequency? (Assume the speed of sound to be 340 m/s.) A)55 cm B)1.7 cm C)5.2 cm D)3.4 cm
A bat is flitting about in a cave navigating via ultrasonic bleeps. Assume that the sound emission frequency of the bat is 39,000 Hz. During one fast swoop directly toward a flat wall surface, the bat is moving at 0.025 times the speed of sound in air. The temperature in the cave is 66°F. a) What is the frequency detected by the wall? b) What is the frequency detected by the bat?
A bat moving with a speed of 3.15 m/s and emitting sound of 39.0 kHz approaches a moth at rest on a tree trunk. Part A What frequency is heard by the moth?