1) A wave has wavelength of 100 m and a speed of 0.68 m/s. What is the frequency of the wave?
2) A wave has a frequency of 75 Hz and a wavelength of 0.003 km. What is the speed of the wave?
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1) A wave has wavelength of 100 m and a speed of 0.68 m/s. What is the frequency of the wave?
2) A wave has a frequency of 75 Hz and a wavelength of 0.003 km. What is the speed of the wave?
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Answer:
1. Answer: 0.0068 Hz
2. Answer: 0.225 km/s
Explanation:
1.
The formula relating the speed, wavelength, and frequency of a wave is:
speed = wavelength x frequency
Rearranging this formula, we can solve for the frequency:
frequency = speed / wavelength
Plugging in the values given in the question, we get:
frequency = 0.68 m/s / 100 m
frequency = 0.0068 Hz
Therefore, the frequency of the wave is 0.0068 Hz.
2.
The formula relating the speed, wavelength, and frequency of a wave is:
speed = wavelength x frequency
Plugging in the values given in the question, we get:
speed = 0.003 km x 75 Hz
speed = 0.225 km/s
Therefore, the speed of the wave is 0.225 km/s.