How do ultrasonic detectors operate and what can they determine?

What will be an ideal response?


Ultrasonic detectors operate by emitting a pulse of high frequency sound and then detecting the echo when it bounces off an object. These detectors can be used to determine the distance to the object by measuring the time interval between the emission of the pulse and the return of the echo.

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If a true value of 5.3284 inches is measured as 4.7833 inches, what is the relative error? Round to one decimal place.

A. 10.2 B. 10.3 C. 10.4 D. 10.5

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Programmed decisions are used primarily to deal with unique, one-of-a-kind situations

Indicate whether the statement is true or false.

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Discuss recommendations for forming slant letters and numerals.

What will be an ideal response?

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Which of the following methods is not normally associated with producing PROMs?

A) Silicon links B) spst switches C) Metal links D) Shorted junctions

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