11. A transverse wave on a string is given by y = (2.0 cm)×sin π[(200/s)t-(0.8/cm)x]. What is the maximum particle speed?
(A) 200π cm/sec
(B) 370 cm/sec
(C) 400π cm/sec
(D) 350 cm/sec
(E) 450π cm/sec
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統計: A(0), B(0), C(1), D(0), E(0) #3384045
統計: A(0), B(0), C(1), D(0), E(0) #3384045