1, 2. See notes.
3. 200 m/s
4. wavelength is 4 m. Frequency is 6 Hz.
5. 3,000,000 / 340 --- that's around a million to one ratio
6.
a. see notes
b. wavelengths are: 2 m, 1 m, and 2/3 m
c. frequencies are 10, 20 and 30 Hz, respectively, for n = 1, 2 and 3
d. speeds are all constant: 20 m/s
7. speed of light divided by 89.7 MHz. That is 300,000,000 / 89,700,000, which works out to around 3.3 m.
8. 524 Hz and 1048 Hz
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