Question

If 20 waves of water pass you in 10.0 s and the waves are 2.0 m long, how fast are they moving?

A. 1.0 m/s

B. 2.0 m/s

C. 4.0 m/s

D. 8.0 m/s

***Thank you!! :D

Answer 1

I think that we have to compute this quantity:
\[\Large v = \frac{{20 \times 2}}{{10}} = ...\]
since 1 wave passes at eac 0.5 seconds

Answer 2

each*

Answer 3

okay! so 40/10 = 4 ? so the solution is choice C?

Answer 4

yes! that's right!

Answer 5

yay!! thank you:)

Answer 6

thank you!! :)