Which frequency produces a sound that can be heard by a person?
(A) 100 kHz
(B) 40 kHz
(C) 2 kHz
(D) 30 kHz
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Which frequency produces a sound that can be heard by a person?
(A) 100 kHz
(B) 40 kHz
(C) 2 kHz
(D) 30 kHz
Viewing 1 replies (of 1 total)
Viewing 1 replies (of 1 total)