It seems you are talking about radio waves. The wavelength (40 m) multiplied by the frequency (7 million / second) must equal the speed of light (300 million meters/second). It seems that in this example numbers, either the wavelength or the frequency, or both, are not expressed with a great accuracy. For example, if 40 meters is exact, the frequency would be close to 7.5 MHz.
Frequency (1/seconds) x Wave Length (meters) = Speed (meters/sec. or m/s)
It is a constant which is equal to the speed.
The speed of a wave is equal to its wavelength times its frequency. Since you are using SI units, the answer will be in meters/second.
The formula for a wave in this case is: speed = frequency x wavelength. Since Hz = 1/second, the answer will be in meter/second.
wave length and frequency are the product of the wave speed, so the wave speed is a constant variable and the other two are inversely proportional the wave length increases, as the frequency decreases
Frequency (1/seconds) x Wave Length (meters) = Speed (meters/sec. or m/s)
The wavelength is equal to the speed divided by the frequency.
The length of each wave is 299,792,458 meters/the frequency of the wave .
The speed of a wave is equal to the product of its wavelength and its frequency. (If you want to have the speed in meters/second, convert the wavelength to meters first.)
The wavelength is calculated using the formula: Wavelength = Velocity / Frequency. Substituting the values given, we get Wavelength = 15 / 5.4 = 2.78 meters. Hence, the length of the wave is 2.78 meters.
Frequency and wavelength of a wave are inversely related: as frequency increases, wavelength decreases, and vice versa. This relationship is described by the wave equation: speed = frequency x wavelength. In other words, for a given wave speed, if frequency increases, wavelength must decrease to maintain the same speed.
velocity of a wave equals wave frequency times wave length.
The length of the rope would be half the wavelength of the standing wave, so in this case, the rope would be 5 meters long. This is because the fundamental frequency of the standing wave has one full wavelength, which corresponds to half the length of the rope.
It is a constant which is equal to the speed.
In general, the relationship between length and wave frequency is inversely proportional. This means that as the length of a wave increases, its frequency decreases. Conversely, if the length of a wave decreases, its frequency increases.
The speed of a wave is equal to its wavelength times its frequency. Since you are using SI units, the answer will be in meters/second.
The formula for a wave in this case is: speed = frequency x wavelength. Since Hz = 1/second, the answer will be in meter/second.