xia1087 xia1087

05-05-2020
Physics

contestada

Multiple choice

A set of water waves travels at 20.0 m/s , and 4.0 waves pass you in 2.0 s. What is the wavelength of the waves?

5.0 m

10 m

0.20 m

2.5 m

Respuesta :

ThanaUma ThanaUma

31-07-2022

Answer:

10m

Explanation:

In 2 s four waves travel so

for a wave to travel it will take 0.5s

but Velocity of wave = Wavelength × Frequency

Frequency = 1/Period

f=1/0.5s

f=2Hz

so Wavelength = 20ms-1 /2 Hz

= 10 m

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