Question

Una superficie de agua se golpea con una regla cada 0,2 segundos. Si la longitud de onda de la onda que se produce

Answer 1

For this case we have:

A surface of water is hit with a ruler every 0.2 seconds. If the wavelength of the wave that occurs is 3.5 cm, calculate:

a. The frequency of the wave.

b. The velocity of wave propagation.

By definition, we have that the velocity of propagation of the wave is given by:

$v = w * f$

Where:

w: is the wavelength

f: It is the frequency

On the other hand, we can find the frequency:

$f = \frac {1} {T}\\f = \frac {1} {0.2}\\f = 5 \frac {1} {s}$

Thus, the velocity of propagation of the wave is:

$v = 3.5 \ cm * 5 \frac {1} {s}\\v = 17.5 \frac {cm} {s}$

Answer:

$f = 5 \frac {1} {s}\\v = 17.5 \frac {cm} {s}$