Question

Определите скорость распространения волн в воде,если источник волн колеблется с переодом 5 мс. Длина волны 7 м.Колебания, имеющие частоту 500 Гц, распространяюся в воздухе. Длина волны 70 см. Найдите скорость распространения колебаний.

Answer 1

v=l/T*7м/.0005с=1400м/с

 

скорость равна лямбда/ню частоту=0,7м/500гц=14мм/с

Answer 2

Calculation of Wave Speed in Water

To determine the speed of wave propagation in water, we can use the formula:

Wave Speed = Wavelength / Period

Given that the wavelength of the waves is 7 meters and the period of oscillation is 5 milliseconds, we can calculate the wave speed as follows:

Wave Speed = 7 meters / 5 milliseconds

However, we need to convert the period from milliseconds to seconds before performing the calculation. There are 1000 milliseconds in 1 second, so the period in seconds is:

Period = 5 milliseconds / 1000 = 0.005 seconds

Now we can calculate the wave speed:

Wave Speed = 7 meters / 0.005 seconds

The wave speed in water is 1400 meters per second.

Calculation of Wave Speed in Air

To determine the speed of wave propagation in air, we can use the formula:

Wave Speed = Wavelength x Frequency

Given that the wavelength of the waves in air is 70 centimeters (or 0.7 meters) and the frequency is 500 Hz, we can calculate the wave speed as follows:

Wave Speed = 0.7 meters x 500 Hz

The wave speed in air is 350 meters per second.

Please note that the speed of sound in air can vary depending on factors such as temperature, humidity, and atmospheric pressure. The value provided here is an approximate average value.

If you have any further questions, feel free to ask!