A wave's frequency is 2 Hz and its wavelength is 4 m. What is the wave's speed?
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Answer:
If you keep track of the units, this will become self apparent. Hertz is a unit of inverse time, i.e. 1 Hz = 1/sec. So, 2 Hz * 8 m = 2/sec * 4m = 8 m/sec. That's a speed. Get it?
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Other answers
If you keep track of the units, this will become self apparent. Hertz is a unit of inverse time, i.e. 1 Hz = 1/sec. So, 2 Hz * 8 m = 2/sec * 4m = 8 m/sec. That's a speed. Get it?
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