The Doppler Shift of Ultrasonic Waves Can Measure the Speed

question 55

Multiple Choice

The Doppler shift of ultrasonic waves can measure the speed of blood in an artery.If the frequency of the stationary source is 95.0 kHz and the reflected sound has a Doppler shift of 210 Hz,what is the blood flow speed? (The speed of sound inside the body is 1 500 m/s. )

• A)1.0 m/s
• B)1.7 m/s
• C)3.3 m/s
• D)3.9 m/s
• E)6.5 m/s

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The result of an annual or biannual process in which a manager evaluates an employee’s performance relative to the requirements of his or her job and uses the information to show the person where improvements are needed and why

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The systematic assessment of the design, implementation, and outcomes of training programs to determine their effectiveness and to make informed decisions on their improvement.

Correlation Analyses

Statistical techniques used to measure and describe the strength and direction of the relationship between two variables.

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The consistency and dependability of a process, system, or measurement.