Answer for chapter 8 lm 1 the value of will be 40o the speed wavelength and amplitude of the reflected wave train should be the same as those properties for the incident wave train in a model of mechanical waves the amplitude decreases slightly as the wave travels extensions 5. Sinusoidal wave is traveling on the cord the speed of each piece of the cord will be given by the speed relationship of a simple harmonic oscillator equation 11 9 which depends on the amplitude of the wave the frequency of the wave and the specific time of observation 14. Chapter 17mechanical waves and sound section 172 properties of mechanical waves pages 504 507 calculating the speed of mechanical waves content and vocabulary support period frequency and wavelength any motion that repeats at regular time intervals is called periodic motion an example of periodic motion is an ocean wave one. Pearson physics level 20 unit iv oscillatory motion and mechanical waves chapter 7 solutions student book page 345 example 71 practice problems 1 analysis and solution 3 60 s 500 min 1 min 300 s 1 1 300 s 333 10 hz t f t x x the frequency of the earthquake waves is 333 x 10 3 hz 2 analysis and solution 1 1 78hz 0013s t . Chapter 17 mechanical waves and sound section 172 properties of mechanical waves pages 504 507 this section introduces measurable properties used to describe mechanical waves including frequency period wavelength speed and amplitude reading strategy page 504 build vocabulary as you read write a definition in your own words
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