Multiple-Concept Example 3 reviews the concepts that are important in this problem. The entrance to a large lecture room consists oftwo side-by-side doors, one hinged on the left and the other hinged on the right. Each door is 0.690 m wide. Sound of frequency 757 Hzis coming through the entrance from within the room. Take the speed of sound to be 341 m/s. What is the diffraction angle 0 of thesound after it passes through the doorway when (a) one door is open and (b) both doors are open?e (both doors open)0 (one door open)Units(a) NumberUnits(b) NumberCEH

Given data: width d = 0.690 m incoming frequency f = 757 Hz sound's speed v = 341 m/s

Answered: Multiple-Concept Example 3 reviews the…

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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Sound waves with frequency 2600 Hz and speed 343 m/s diffract through the rectangular opening of a speaker cabinet and into a large auditorium of length 100 m. The opening, which has a horizontal width of 38.7 cm, faces a wall 100 m away (the figure below). Along that wall, how far from the central axis of that wall in meters will a listener be at the first diffraction minimum and thus have difficulty hearing the sound? (Neglect reflections.)
Two antennas located at points A and B are broadcasting radio waves of frequency 96.0 MHz, perfectly in phase with each other. The two antennas are separated by a distance d= 6.20 m. An observer, P, is located on the x axis, a distance x= 84.0 m from antenna A, so that APB forms a right triangle with PB as hypotenuse. What is the phase difference between the waves arriving at P from antennas A and B? A P X B 4.594x10-¹ rad Computer's answer now shown above. You are correct. Your receipt no. is 158-6031 > Previous Tries Now observer P walks along the x axis toward antenna A. What is P's distance from A when he first observes fully destructive interference between the two waves? 1.203 m As P gets closer A, the path length difference gets larger. What's the smallest path length difference that gives destructive interference? Submit Answer Tries 0/6 Submit Answer Incorrect. Tries 1/6 Previous Tries If observer P continues walking until he reaches antenna A, at how many places along the x…
You measure three segments of the distance between a diffraction slit an the screen on which the pattern forms: x1 = (15.8 ± 0.2) cm, x2 = (6.7 ± 0.1) cm, and x3 = (11.3 ± 0.1). What is the uncertainty of the total distance x1 + x2 + x3? Group of answer choices 0.4 cm 0.5 cm 0.2 cm 0.3 cm 0.1 cm
The entrance to a large lecture room consists of two side-by-side doors, one hinged on the left, and the other hinged on the right. Each door is 0.790 m wide. Sound of frequency 870 Hz is coming through the entrance from within the room. Take the speed of sound to be 340 m/s. What is the diffraction angle of the sound after it passes through the doorway when one door is open.
You wish to make an anti-reflective coating from a material with index of refraction 1.09 to put on top of glass with an index of refraction 1.56. What is the minimum thickness of the coating that will produce destructive interference for light of wavelength 455.0 nm? Answer in units of nm.
A water break at the entrance to a harbor consists of a rock barrier with a 67.0 m wide opening. Ocean waves of 43.0 m wavelength approach the opening straight on. At what angle (in degrees) to the incident direction are the boats inside the harbor most protected against wave action?
Two antennas located at points A and B are broadcasting radio waves of frequency 104.0 MHz. The signals start in phase with each other. The two antennas are separated by a distance d = 8.7 m. An observer is located at point P on the x axis, a distance x = 110.0 m from antenna A. The points A, P, and B form a right triangle. Now observer P walks along the x axis toward antenna A. What is P's distance from A when they first observe fully constructive interference between the two waves?
A cold distance planet has an atmosphere of hydrogen (speed of sound = 1320 m/s) over a liquid ocean of carbon dioxide (speed of sound = 259 m/s). A sudden shift in the rocky crust beneath the ocean creates a sound wave that heads toward the surface at an angle of 7 degrees. At the surface, the wave is refracted with a refraction angle of . . . Group of answer choices 49 degrees. 38 degrees. The wave undergoes total internal reflection. 80 degrees.
A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency of 4.14 × 10¹4 Hz that is incident normally on the pane. If the material has an index of refraction of 1.34 and the glass has an index of refraction of 1.537, what is the minimum thickness the coating should have in nanometers? Please keep one decimal place in your answer. (c = 3.00 × 108 m/s)

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