How fast is a wave with a wavelength of 0.1 m and a frequency of 50 hz travelling?
a. 0.002 m/s
b. 1 m/s
c. 5 m/s
d. 50 m/s

explanation:

could i give you a exaplo that could you?

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) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.