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Which type of mechanical wave needs a source of energy to produce it?

a. a transverse wave
b. a longitudinal wave
c. a surface wave
d. all of the above

User Wot
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1 Answer

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The correct answer is letter D. all of the above. The type of mechanical wave that needs a source of energy to produce it are transverse wave, longitudinal wave, and surface wave. Meaning, all the choices.
User Austin R
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