H. DE-2 Ray is driving his car at a speed of 25 M/S when he sees a truck in front of him coming toward him with a speed of 35m/s. Ray honks his horn, which has a fregquency of 1,750 Hz, at the truck. a) Make a sketch of the situation showning Ray's car, the truck, and their velocities. b) Find the frequency heard by the truck. c) The sound from Ray's horn reflects off of the front vertical surface of the trúck and Ray hears the echo. Find the frequency heard by Ray by first sketching the situation and then doing the calculation. Be carefui; now the truck is the source (of the reflected wave) and Ray is the receiver. 工工

H. DE-2 Ray is driving his car at a speed of 25 M/S when he sees a truck in front of him coming toward him with a speed of 35m/s. Ray honks his horn, which has a fregquency of 1,750 Hz, at the truck. a) Make a sketch of the situation showning Ray's car, the truck, and their velocities. b) Find the frequency heard by the truck. c) The sound from Ray's horn reflects off of the front vertical surface of the trúck and Ray hears the echo. Find the frequency heard by Ray by first sketching the situation and then doing the calculation. Be carefui; now the truck is the source (of the reflected wave) and Ray is the receiver. 工工

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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Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

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ABswers:
DE-1 a) 332HZ
DE-2 a) Ray is drawn on the left. b) 2.08x10Hz c) The truck is drawn on the left.2.49X101HZ
DE-3 a) 0.0195m b) 0.0262m c) 1.79x10'Hz
b) 256HZ c) 194HZ

DE-2 Ray is dríving his car at a speed of 25 M/S when he sees a truck in front of him coming toward him
with a speed of 35m/s. Ray honks his horn, which has a frequency of 1,750 Hz, at the truck.
a) Make a sketch of the situation showning Ray's car, the truck, and their velocities.
b) Find the frequency heard by the truck.
c) The sound from Ray's horn reflects off of the front vertical surface of the truck and Ray hears the
echo. Find the frequency heard by Ray by first sketching the situation and then doing the
calculation. Be carefui; now the truck is the source (of the reflected wave) and Ray is the receiver.

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