if the distance between crest were 1.5 meters apart, and 2 crest pass the pole each second, what would be the speed of the wave ?
period= .5 seconds, wavelength= 1.5
wavelenght*frequency= speed
1.5m*1/.5sec= .75m/s
You are sitting in a rowboat on a lake, watching waves created by passing motorboat. If you have count 4 crest every
second and the crest are 5 ft apart, what is the speed of the water waves?
To find the speed of the wave, we can use the formula:
Speed = Distance / Time
Given that the distance between crests is 1.5 meters and two crests pass the pole each second, we can calculate the speed.
The distance between two crests is equal to one wavelength of the wave. Therefore, the wavelength is 1.5 meters.
Since two crests pass the pole each second, the time taken for two crests to pass is 1 second.
Now we can substitute these values into the formula:
Speed = 1.5 meters / 1 second
So, the speed of the wave is 1.5 meters per second.
To find the speed of the wave, you need to know the wavelength and the time it takes for the wave to travel that distance.
In this scenario, the distance between each crest is given as 1.5 meters. This distance is known as the wavelength (λ).
You are also given that two crests pass a fixed point (the pole) every second. This is known as the frequency (f). In this case, the frequency is 2 Hz (Hertz), which means two cycles occur each second.
The relationship between the wavelength (λ), frequency (f), and speed (v) of a wave is given by the formula:
v = λ * f
So, to find the speed, you can multiply the wavelength by the frequency.
v = 1.5 meters * 2 Hz
v = 3 meters/second
Therefore, the speed of the wave would be 3 meters/second.