A wave vibrates up and down 22 cycles in 7 seconds with a wave speed of 57. Calculate the wavelength. (Round to the 2nd number after the decimal)

18.14m

Explanation:

Given parameters:

Frequency = cycles/s

Speed of wave = 57m/s

Unknown:

Wavelength  = ?

Solution:

The speed of a wave is related to frequency and wavelength using the expression below;

         V = f x λ

V is the speed of the wave

f is the frequency

λ is the wavelength

  Insert the parameters and find λ;

        57  =   x λ

       λ = 57 x   = 18.14m

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

not too sure thinking all accelerations are pointed down