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v=wavelength( f)
v= 10 x 50
v= 500 m/s

Work

v=?
wavelength= 10 m
f= 50 Hz

Given:

Example 1 Answer

**WE were given v and Wavelength so we can use the original formula

v= (wavelength)( f)

65 m/s= (0.8 m)(f) You want to solve for f so divide.

65/ 0.8 = f

81.25 seconds = f

Work

v=65 m/s
wavelength =0.8 m
f=?

Given

Answer from example number 2

From here on out. I want to see what you can do so I will not be helping.

​Use the formula f = 1/T

20 = 1 / T

​Use f = 1/T

10 = 1 / T