Review I ConstantsAn old mining tunnel disappears into a hillside. Youwould like to know how long the tunnel is, but it'stoo dangerous to go inside. Recalling your recentphysics class, you decide to try setting up standing-wave resonances inside the tunnel. Using yoursubsonic amplifier and loudspeaker, you findresonances at 4.5 Hz and 6.3 Hz , and at notrequencies between these. It's rather chilly insidethe tunnel, so you estimate the sound speed to be330 m/s.Part ABased on your measurements, how far is it to the end of the tunnel?Express your answer to two significant figures and include the appropriate units.* * O = ?L- ValueUnitsSubmitRequest Answer

Given: The resonances are at the frequencies 4.5 Hz and 6.3 Hz. The speed of the sound is 330 ms-1.…

Answered: Review I C An old mining tunnel…

Similar questions

The softest sound a human ear can hear is at 0 dB (Io = 10-12 W/m2). Sounds above 130 dB cause pain. A particular student's eardrum has an area of A = 51 mm^2. a. What is the most power, in watts, the ear can receive before the listener feels pain? b. What is the smallest power, in watts, the ear can detect?
Part A Two steel guitar strings A and B have the same length and are under the same tension. String A has a diameter of 0.65 mm and string B has a diameter 1.17 mm. Treat the stretched-out strings as right cylinders with length L and radius r having volume n L. You may assume that both strings are made of the same material, so they have the same density. The ratio of the wave speeds, VA/VB, in the two strings is (enter your answer with two significant figures) possibly useful: density = mass/volume v = Af string fixed at both ends: An = 2L/n ; n = 1, 2, 3, 4, 5... %3D V = squareroot[F/µ) H = mass per unit length 1.8 Sumit Previous Answers Correct Part B The ratio of the eleventh harmonic frequency of string A to the eleventh harmonic frequency of string B, (111)A/(f11)B, is (enter your answer with two significant figures) 1.8 Bubm Previous Answers Correct
An interface is formed between a block of aluminium (with an acoustic impedance of 1.8 x 107 kg m2 s') and a block of copper (with an acoustic impedance of 4.6 x 107 kg m-2 s-1). Longitudinal sound waves travelling through the aluminium are normally incident on the boundary, and are partially reflected. a) What is the ratio of the amplitude of the reflected wave to that of the incident wave? Number b) What is the ratio of the amplitude of the transmitted wave to that of the incident wave? Number c) What percentage of the incident power is transmitted? Number d) What percentage of the incident power is reflected? Number % Ouit P Sove Questi
Tuning the Waves. You and your team are designing a system that allows you to control the speed of a transverse wave on a thin tungsten wire by adjusting its tension with a spring. One end of the wire is connected to an inner wall of a large wooden crate and the other end to one side of a spring. The opposite side of the spring is then connected to a screw that is mounted on the opposite wall of the crate. The screw can then be adjusted to stretch the spring, and therefore adjust the tension in the wire. The uniform wire is 75.6 cm long and has a mass of 3.15 × 103 kg. The spring has an unstretched length of 11.0 cm and a spring In the lowest possible tension setting of the screw, that is, that which stretches from its equilibrium position. The screw can be turned to stretch it an additional attainable speeds of transverse waves that can travel on the wire with this setup? N/m. constant k = the spring the least, the spring is stretched by 0.500 cm 2.75 cm. What are (a) the highest and…
I need help with parts e and f please. I know that a) 0.288m, b) 180 m/s, c) 162 N, and d) 125Hz.
A guitar with strings of length L = 0.55 m has new strings put on it. The low E string has a linear density of ρ = 0.0062 kg/m and when tuned properly should produce a fundamental tone of ν = 82.41 Hz. L=0.55 m p= 0.0062 kg/m A: What is the proper tension the string should be under, in Newtons? B: If the string was mistakenly tuned to high E (ν = 330 Hz) what would the tension be, in Newtons?
Two wires are welded together end to end. The wires are made of the same material, but the diameter of one is twice that of the other. They are subjected to a tension T. The thin wire has a length L and a linear mass density μ. The combined wire is fixed at both ends and vibrated in such a way that two antinodes are present, with the node between them being right at the weld. a. What is the frequency of vibration? b. What is the length of the thick wire?
Consider a sound wave in air that has displacement amplitude 2.40X10-² mm. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Amplitude of a sound wave in air. Part A Calculate the pressure amplitude for frequencies of 158 Hz . Take the bulk modulus of the air to be 1.42 × 105 Pa and the speed of sound to be 344 m/s Express your answer in pascals. pmaz = |98.30 Part B Submit Previous Answers Request Answer Be x Incorrect; Try Again; 4 attempts remaining pmaz = |983 Calculate the pressure amplitude for frequencies of 1580 Hz. Take the bulk modulus of the air to be 1.42 × 105 Pa and the speed of sound to be 344 m/s. Express your answer in pascals. Part C ? Be pmax = |9830 Pa Submit Previous Answers Request Answer (3 ? x Incorrect; Try Again; 5 attempts remaining Re 6 Calculate the pressure amplitude for frequencies of 1.58x104 Hz . Take the bulk modulus of the air to be 1.42 × 105 Pa Express your answer in pascals. Pa #3 ? Pa Submit Previous…
I need the answer as soon as possible
A carbon-dioxide laser emits infrared light with a wavelength of 10.6 μm. Part A What is the length of a tube that will oscillate in the mmm = 210000 mode? Part B What is the frequency? Express your answer with the appropriate units. Part C Imagine a pulse of light bouncing back and forth between the ends of the tube. How many round trips will the pulse make in each second?