Question: A 0.50 m wave has a frequency of 686 Hz. What is the speed of the wave?

Answer Choices:

(a) 170 m/s

(b) 1,370 m/s

(c) 340 m/s

(d) 690 m/s

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Electrical current is actually made of a. static charges. b. moving electrons. c. high or low voltage. d. resistance within a circuit.

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