A motorboat is tied to a dock with its motor running. The spinning propeller makes a surface wave that moves at a speed of 400 cm/s with a wavelength of 100 cm. What is the wave’s frequency?
4 Hz
25 Hz
0.25 Hz
40 Hz
The formula for wave speed (v) is wavelength (λ) multiplied by frequency (f), or v=λf. Rearranging this formula to solve for frequency, we get f=v/λ.
Using the given values, we can calculate the frequency as:
f = 400 cm/s / 100 cm = 4 Hz
Therefore, the frequency of the surface wave is 4 Hz. Answer: 4 Hz.
To find the wave's frequency, you can use the formula:
Frequency (f) = Speed (v) / Wavelength (λ)
In this case, the speed is given as 400 cm/s and the wavelength is given as 100 cm. Plugging those values into the formula, we get:
f = 400 cm/s / 100 cm = 4 Hz
Therefore, the wave's frequency is 4 Hz.
To find the wave's frequency, you can use the formula:
Frequency = Speed / Wavelength
Given:
Speed = 400 cm/s
Wavelength = 100 cm
Plug in the values:
Frequency = 400 cm/s / 100 cm
Frequency = 4 Hz
Therefore, the wave's frequency is 4 Hz.