rina62
30.06.2019 •
Mathematics
Abird is sitting on a wooden post in the ocean a short distance offshore. if 2 wave crests pass by the bird every second, and each wave has a length of 2.5 meters, what is the speed of the wave? a. 0.8 m/s b. 2 m/s c. 5 m/s d. 3 m/s
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Ответ:
Option 'C' is correct.
Step-by-step explanation:
Since we have given that
Length of each wave = 2.5 meters
Since there are 2 wave crests pass by the bird every second ,
So, Length of two waves is given by
As we know the formula for " Speed " :
Hence, Option 'C' is correct.
Ответ:
The answer is C. 5m/s
Step-by-step explanation:
Wave speed can be calculated using the following formula:
v = f x λ
where v is the wave speed, f is the frequency, and λ is the wavelength.
So, in this example, the wave speed equals
2 waves/second x 2.5 meters = 5 m/s
Ответ: