6. What is the frequency if speed = 120m/s and wavelength = 3m?
- 400Hz
- 40Hz
- 4m/s
- 40m
7. What is the speed if wavelength = 3m and frequency = 10Hz?
- 20m/s
- 2m/s
- 30m/s
- 3m/s
8. What is the wavelength if speed - 345m/s and frequency = 790Hz?
- 0.4m
- 4m/s
- 0.4m/s
- 4Hz
9. What is the frequency if speed = 345m/s and wavelength = .25m?
- 1380Hz
- 1387Hz
- 13.80Hz
- .1380Hz
