A car is driving at a presetly unknown constant velocity whiletowards it at a constant speed 15.00 m/s relative to the stationary ground. Itsspeakers are playing a favourite song of yours, Also sprach Zarathustra, whichyou know starts on a pitch of C (f. = 130.81 Hz). However, you have perfect pitchand perceive the first note is fo = 145.23 Hz. You measure the sound to be 85.00dB (decibels), and the car is 20.00 m away from you.you are biking%3D%3Da) What is the speed of the car, and is it traveling towards you or away fromyou?b) What is the sound intensity, I, at your location?c) What is the power of the sound waves emitted from the speaker?Assume spherical sound waves and 20° C.

Given: The speed of the bike is 15.00 m/s. The frequency of the source is 130.81 Hz. The frequency…

Answered: A car is driving at a presetly unknown…

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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Could you explain every step please? Thanks!
13 = 342 237. € X Your response differs from the correct answer by more than 10%. Double check your calculations. m (c) Suppose the wire is carbon steel with a density of 7.89 x 10³ kg/m³, a cross-sectional area A = 2.68 x 10-7 m², and an elastic limit of 2.50 x 108 Pa. Find the fundamental frequency if the wire is tightened to the elastic limit. Neglect any stretching of the wire (which would slightly reduce the mass per unit length). Hz EXERCISE HINTS: GETTING STARTED I I'M STUCK! (a) Find the fundamental frequency and second harmonic if the tension in the wire is increased to 118 N. (Assume the wire doesn't stretch or break.) ffundamental = Hz f2nd harmonic= Hz (b) Using a sound speed of 342 m/s, find the wavelengths of the sound waves produced. λ (larger) = 2.00 X Follow the example. Once you have computed the correct fundamental frequency, you should be able to determine the wavelengths of the sound waves. m > (smaller) = 1.00 X Follow the example. Once you have computed the…
Consider a string of length 50 cm fixed at both ends. It is plucked or struck at t=5s. Assume the speed of sound is 343 m/s. The fundamental frequency is f1 = 34.3 rad/s A B с D f1 = 646 Hz f1 = 343 Hz f1 = 34.3 Hz
A sound wave of the form s = Sm Cos(kx - wt + p) travels at 346 m/s through air in a long horizontal tube. At one instant, air molecule A at x = 2.04 m is at its maximum positive displacement of 6.00 nm and air molecule B at x = 2.07 m is at a positive displacement of 2.40 nm. All the molecules between A and B are at intermediate displacements. What is the frequency of the wave? Number i Units
A stretched string has a fundamental frequency of 780 Hz. What is the fundamental frequency if the tension is increased by a factor of 3.00?
The linear density of the A string on a violin is 4.12 × 10-4 kg/m. A wave on the string has a frequency of 528 Hz and a wavelength of 54.1 cm. What is the tension in the string?
The speed of a transverse wave is 250.00m/s, its wavelength is 0.80m, and the amplitude is 23.00 cm. How much time(in s) is required for a particle on the string to move through a distance of 5.00km?
The amplitude of a wave disturbance M20 (1 positive x-direction is given by y = Tetromabruts esd (1+x)² by y = 1 ad m travelling in the at time t = 0 and [1 + (x − 1)²] - at t = 2 s, where x and y are in metre. The shape of the wave disturbance does not change during the propagation. The velocity of the wave is...... m/s.
A sound wave in room-temperature air has an intensity level of 65 dB and a frequency of 131 Hz. (v = 343 m/s, p = 1.20 kg/m³). a) Calculate the pressure amplitude. b) Calculate the displacement amplitude.
A sinusoidal wave with wavelength 0.400 m travelsalong a string. The maximum transverse speed of a point onthe string is 3.00 m/s and the maximum transverse acceleration is8.50 * 104 m/s2. What are the propagation speed v and the amplitudeA of the wave?
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 276.0 Hz. The tuner hears 8.00 beats per second. The tuner increases the tension on the as-yet unturned string, and now when they are played together the beat frequency is 1.00 s. By what percentage did the tuner increase the tension on that string? 5.008
The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find the wavelengths of these extremes at a temperature of 38°C. 20 Hz m 20000 Hz m

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