4. A longitudinal wave moves along a slinky spring. At the moment shown below, position A and B are the centers of a compression and a rarefraction respectively and are 24cm apart.

4.1 what is the wavelength of this wave?
4.2 it takes 1,5 s for a compression to move from A to B.
4.2.1 calculate the speed of the wave
4.2.2 calculate the frequency of the wave.

1 answer

4.1 The wavelength of the wave can be calculated by measuring the distance between two consecutive points of the same phase. In this case, the distance between position A and position B is the wavelength.

Wavelength = 24 cm.

4.2.1 The speed of the wave can be calculated using the formula:

Speed = Wavelength / Time

Speed = 24 cm / 1.5 s = 16 cm/s

Therefore, the speed of the wave is 16 cm/s.

4.2.2 The frequency of the wave can be calculated using the formula:

Frequency = 1 / Time

Frequency = 1 / 1.5 s = 0.67 Hz

Therefore, the frequency of the wave is 0.67 Hz.