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A certain wave has a wavelength of 35 meters and a frequency of 4.0 Hz. What is the speed of the wave?
A) 8.8 m/s
B) 31 m/s
C) 39 m/s
D) 140 m/s

Respuesta :

Bladerunner1976
speed of a wave is the wavelength * frequency

speed = 35 * 4 = 140 m/s

Answer:

The correct answer is option D.

Explanation:

Wavelength of the wave = [tex]\lambda [/tex] =35 m

Frequency of the wave = f = 4.0 Hz

Time taken by the wave = T

[tex]T=\frac{1}{frequency}=\frac{1}{4.0 Hz}=0.25 s[/tex]

Speed of the wave:

[tex]Speed=\frac{35 m}{0.25 s}=140 m/s[/tex]

Hence, the correct answer is option D.

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