## anonymous one year ago 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 ? :/

1. Michele_Laino

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

2. anonymous

ok! what do we plug in?

3. Michele_Laino

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

4. anonymous

343? so our solution is 340 m/s ?

5. Michele_Laino

yes! that's right!

6. anonymous

yay! thank you:)

7. Michele_Laino

:)