A student reading his physics book on a lake dock notices that the distance between two incoming wave crests is about 0.65 m, and he then measures the time of arrival between the crests to be 1.8 s. What is the approximate speed of the waves?
frequency*wavelength= wavlength/period=speed
solve for speed.
So would that just be .65/1.8 and the answer is 0.36?
wave crest/time interval=speed
(.65m)/(1.6s)=0.36m/s
To calculate the speed of the waves, we need to use the formula for wave speed:
Speed = Distance / Time
In this case, the distance between two wave crests is given as 0.65 m, and the time of arrival between the crests is given as 1.8 s.
Plugging these values into the formula, we get:
Speed = 0.65 m / 1.8 s
To calculate the speed, simply divide 0.65 meters by 1.8 seconds.
Using a calculator, the result is approximately 0.361 m/s.
Therefore, the approximate speed of the waves is 0.361 m/s.