Wiki User
∙ 16y agoIf a wave is traveling at 5 meters per second (assuming that is what the question meant) and its wavelength is 20 meters, consider standing beside the wave and watching it pass. As the wave is 20 meters long and it is moving at 5 meters per second, it will take 4 seconds for the full cycle of the wave to pass an observer. That means its frequency is one cycle per 4 seconds. And - surprise! - that's the period of the wave. The period of the wave is 4 seconds.
Wiki User
∙ 16y agoThe period of a wave is the time it takes for one complete cycle to pass a point. It is the reciprocal of the frequency. Therefore, a wave with a frequency of 20 Hz would have a period of 0.05 seconds (1/20 = 0.05). The wavelength of 2.0 m is unrelated to the period in this case.
20/5 = 4 seconds
40 Hz
The speed of a wave is equal to the product of wavelength x frequency. Just convert everything to standard units (wavelength to meters, frequency to hertz), multiply both, and you'll get the result, also in standard units (meters / second).
Frequency = (speed)/(wavelength) = 20/2 = 10 Hz
Frequency = (speed)/(wavelength) = 10/20 = 1/2
The speed of the wave can be calculated using the formula speed = frequency x wavelength. In this case, the frequency is 5.0 waves per second and the distance between wave peaks (wavelength) is 20 cm. Therefore, the speed of the wave is 5.0 waves/s x 20 cm = 100 cm/s.
The speed of the wave can be calculated using the formula: speed = wavelength / period. In this case, the speed of the wave is 10 meters / 20 seconds = 0.5 meters per second.
The velocity of a wave can be calculated using the formula: velocity = frequency * wavelength. Plugging in the values, the velocity of the wave would be 1000 meters per second.
speed = distance over time = wavelength times frequency = 2 m times 10 hz = 20 m hz = 20 meters per second.
10 feet
The wavelength of a 20 kHz wave is approximately 15 meters in air. Wavelength can be calculated using the formula: wavelength = speed of sound / frequency.