1. A riverside warehouse has two open doors, as in Figure P24.11. Its interior is lined with a sound-absorbing material. A boat on the river sounds its horn. To per- son A, the sound is loud and clear. To person B, the sound is barely audible. The principal wavelength of the sound waves is 3.00 m. Assuming person B is at the position of the first minimum, determine the dis- tance between the doors, center to center. В Open door 20.0 m d A Open door 150 m- Figure P24.11

1. A riverside warehouse has two open doors, as in Figure P24.11. Its interior is lined with a sound-absorbing material. A boat on the river sounds its horn. To per- son A, the sound is loud and clear. To person B, the sound is barely audible. The principal wavelength of the sound waves is 3.00 m. Assuming person B is at the position of the first minimum, determine the dis- tance between the doors, center to center. В Open door 20.0 m d A Open door 150 m- Figure P24.11

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)...

See similar textbooks

Similar questions

Two loudspeakers are mounted on a rack, one h = 2.74 m above the other. Exactly 8.00 meters to the right of the midpoint, a microphone rests at point O. Point O is equally distant from each loudspeaker. The loudspeakers are driven by the same tone generator and vibrate in phase at 390 Hz. It is possible to create a condition of destructive interference at Point O by changing one or both of the path lengths (r1 and r2) between speaker and microphone. Suppose that this is done by raising the upper speaker while leaving the lower speaker in place. What is the smallest vertical distance (in m) that you would need to raise the upper speaker by, in order to create destructive interference at Point O? (The speed of sound waves in air is 343 m/s.)
A myop with far point located 40 cm in front of his eye. If a computer screen is located 25 cm infront of his eye.a. Find the amount of ocular accommodation required for clear vision.b. If the amplitude of accommodation of this person’s eye is 7 D, calculate the range ofclear vision.
Two separate coherent sources produce waves with wavelengths of 3.20 m. One of the sources S1 is located at point (0m, 5.00 m). You want a second source S2 to be placed along the positive y-axis. Which of the following positions should S2 be placed so that the waves will interfere destructively at the origin? I. y = 1.80 m II. y = 0.200 m I. у 3D — 3.00 m A. I only С. I and III В. П only D. II and III
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.
A diver below the surface of a lake hears the sound of a boat's siren on the surface directly above him; at the same time, a friend standing on solid ground 22.0 m from the boat also listens to him. The siren is 1.20 m above the surface of the water. At what distance (the one marked with “?” In the siren figure is the diver? Both air and water are at 20 ° C.
Light with frequency 6.96E14 Hz travelling in vacuum enters a transparent material that has index of refraction equal to 1.72. What is the light wavelength in the material (in m)?
Physics written by hand.
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?
constant. Show that ve