7. A tug boat horn emits a frequency of 300 Hz in 19 °C air a) Determinethe speed of sound (round answer to the nearest whole number in m/s. b)Use the speed of sound in air determined in part a) to determine theobserved frequency if the tug boat is moving away from a stationaryobserver at 12 m/s.Your answerZACHERY BEAULA

Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…

Answered: 7. A tug boat horn emits a frequency of…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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What a sound wave has a frequency of 727 HZ an air and a way blank of 0.51 M. what is the temperature of the air? relate the speed of sound in air to temperature in unit of kelvin but answer in units of celsius assume the velocity of sound at 0ﾟC Is 325M/S answer in units of deg C
2. A sonar signal of frequency 1x 10^6 Hz has a wavelength of 1.5 mm in water. a) What is the speed of the signal in water? b) What is its period in water? c) What is its period in air?
When the temperature of a substance decreases, what happens to its molecules? O a. The molecules become smaller, contract and have less kinetic energy. O b. The molecules become larger, expands, and will have more kinetic energy. O. The molecules move faster, and have more kinetic energy. O d. The molecules become slower, and have less kinetic energy 7T -1 Consider a wave described by the wave function y (x,t) = 0.85m sin 5T 'x+s-t+), find the wavelength of wave? O a. 0.63 m O b. 0.36 m 1.6 m O d. 0.57 m
15- In science-fiction movies, the movie makers provide exciting visual and sound effects, such as the sound made by a spaceship accelerating to warp speed. Do you think if you were in space, you would hear such sounds? Explain your answer. A
11. An open air column of length 1.40 m is in air at 24.2 °C. What is the frequency of the third harmonic?
what is the shortest resonant length of the air column closed at one end if the wavelength of sound wave is 40 cm? a. 10 cm b. 20 cm c. 40 cm d. 80 cm e. 160 cm
1. The driver of a truck parked on a mountain road give the air horn a quick blast toward a rock cliff 0.590 km away. If he hears the echo 3.55 s later, what is the approximate air temperature at this mountain elevation? O cci16 c 6 cci16 co ceil6 ceile
Part 1: Trains with passengers A railroad train is traveling at 34.2 m/s in still air. The frequency of the note emitted by the train whistle is 220 Hz. The air temperature is -9°C. A.) What frequency is heard by a passenger on a train moving in the opposite direction to the first at 35.8 m/s and approaching the first? B.) What frequency is heard by a passenger on a train moving in the opposite direction to the first at 35.8 m/s and receding from the first?
3. A sound wave with frequency 50 Hz moves at a speed of around 350 m/s in air. It travels into a wall, where it now moves at 3500 m/s. What is the frequency of the sound wave while it is inside the wall? Explain.
QUESTION 6 A tranverse wave in a medium wave is described by the following equation: y(x,t) = (12 m)cos(3.0x - 120t). What is the speed of this wave? (x and y describe real space with units of meters, and t is time in seconds.) а. 60 m/s b. 70 m/s С. 50 m/s d. 30 m/s e. 40 m/s
6. Oscillations and sounds:a.A wave with wavelength 27 m and time between crests of 0.5 s is traveling in water. What is wavelength, frequency,period, and the wave speed? b. You blow into one end close pipe and produce a tone. Explain what happens to the frequency of the tone if you open both ends of the pipe and blow into it again? c. A car moving away from you at the speed of 50.0 m/s while you are standing on the sidewalk. The engine produces sound at 27 Hz and the speed of sound is 340 m/s. What is the frequency you hear?
3. Examine the following wave. It takes the wave 5.0s to move the 3.5m from X to Y. wave motion a) b) c) d) àX Find the amplitude of the wave. Find the period of the wave. Find the frequency of the source. Find the wavelength of the wave. Find the speed of the wave. 1.5m Y

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