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practice test cumulative exam quarter 2

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Question
Answer
show Frequency equals one hurts  
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show Wavelength and period  
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show Period of the 1 megahertz wave is double the period Of the two megahertz wave  
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If an ultrasound wave travels from one medium with a density of 500 kg/m^3 to another medium with a density of 800 kg/m^3, which of the following would occur?   show
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Maximum variation of an acoustic variable is .07 centimeters. Minimum variation is .03 centimeters. Find the amplitude.   show
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show Mechanical  
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show Amplitude  
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Which of the following could be expressed in units of megawatts per centimeter cubed?   show
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show They penetrate deeper through tissue  
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Sound is best described asA   show
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Sound waves with frequencies between 20 Hertz and 20 kilohertz are   show
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show Heat  
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show 0.86 millimeters  
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The speed of sound depends on   show
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If the frequency of a wave is 5 megahertz, what is the period?   show
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The frequency of an ultrasound wave with a. Of .08 microseconds is   show
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show 3.1 megahertz  
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Propagation speed is doubled and frequency is constant, then the period is   show
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show Distance a wave travels in one second  
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show Twice the speed of medium 1  
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The term rarefaction refers to the:   show
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show Power  
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show Crystal thickness and wavelength  
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show A shorter period and a shorter wavelength  
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show 1/3  
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show Half as long  
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show 3.3 megahertz  
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Wavelength equals one millimeter. Find F.   show
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show .77 Millimeters  
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show Mass  
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show Better resolution  
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show 1.7 megahertz  
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show 0.42 millimeters  
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