Question

1. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 0.20 m?

2. What is the frequency of a wave that has a wave speed of 100 m/s and a wavelength of 0.20 m?

3. What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 420 Hz? (Round your answer to the nearest hundredth)

4. What is the wavelength of a sound wave that has a speed of 270 m/s and a frequency of 400 Hz?

5. What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.25 m?

Answer 1

Answer:

1. 10m/so

2. 500Hz

3. 0.81m

4. 0.675m

5. 25m/s

Explanation:

Speed = wavelength * frequency

1. Speed = 50×0.2 = 10m/s

2. Frequency = 100/0.2 = 500Hz

3. Wavelength = 340/420 = 0.81m

4. Wavelength = 270/400 =0.675m

5. Speed = 100×0.25 = 25m/s