Question

A 0.50 m wave has a frequency of 686 Hz. What is the speed of the wave?

170 m/s , 340 m/s , 690 m/s , or 1370 m/s

? :/

Answer 1

here we have to apply this formula:
\[\Large \lambda f = v\]

Answer 2

ok! what do we plug in?

Answer 3

\[\Large \lambda f = v = 0.5 \times 686 = ...m/\sec \]

Answer 4

343?

so our solution is 340 m/s ?

Answer 5

yes! that's right!

Answer 6

yay! thank you:)

Answer 7

:)