What sound level change most nearly corresponds to a factor of three change in intensity?
a. 0.5 dB
c. 3 dB
b. 2 dB
d. 5 dB
D
Physics & Space Science
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In ultrasonic nondestructive testing with the pulse echo technique, a crack is detected by the _________ultrasonic waves.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
A fluid has a density of 1040 kg/m3 . If it rises to a height of 1.8 cm in a 2.0-mm diameter capillary tube, what is the surface tension of the liquid?
a. 0.046 N/m c. 0.092 N/m b. 0.056 N/m d. 0.11 N/m
Physics & Space Science
A relatively new medical device that uses ultrasonics is referred to by the acronym CUSA. What does the letter A stand for?
a. aspirator b. accumulator c. array d. audible
Physics & Space Science
What percent of soil is pore space?
What will be an ideal response?
Physics & Space Science