contestada

1.) The radio wave from a station broadcasting at 1.3×10^6 Hz has a wavelength of 230 m. What is the wave's speed?

2.) A wave has a frequency of 575 Hz. What is its period?

3.) A humming bird feeder is tied by a rope to a tree branch. You notice that in a gentle breeze, the feeder moves back and forth 15 times in 1 minute. How long is the rope?

Respuesta :

jasondunstan18
1. You multiply the provided wavelength and frequency to get a speed of 299000000 m/s.
2. Frequency is 1/Period so the period would 1/575
3. The length of the rope is 3.97 or about 4 meters.

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