Question

СРОЧНО!!!!ФИЗИКИ ВСЕ СЮДА!!!!!Длина волны в воздухе 17см (при скорости 340м/с) . Найти скорость распространения звука в теле, в котором при этой же частоте колебаний длина волны равна 1,02м.

Answer 1

Дано  V1=340 м/с   л1=17 cм      л2=102 cм       V2 - ?
V1 = л1* ню
V2= л2*ню
так как частота одинаковая
V2/V1=л2/л1
V2 = V1*л2/л1=340*102/17=2040 м/с

Answer 2

Calculating the Speed of Sound in the Given Medium

To calculate the speed of sound in the given medium, we can use the formula:

Speed of sound (v) = Frequency (f) × Wavelength (λ)

Given: - Wavelength in air (λ₁) = 17 cm = 0.17 m - Speed of sound in air = 340 m/s - Wavelength in the medium (λ₂) = 1.02 m

First, we need to find the frequency (f) of the sound wave in air using the wavelength and speed of sound in air.

Calculating Frequency in Air

Using the formula v = f × λ, we can rearrange it to solve for frequency:

f = v / λ

Substituting the values: f = 340 m/s / 0.17 m

Calculating: f = 2000 Hz

So, the frequency of the sound wave in air is 2000 Hz.

Calculating Speed of Sound in the Medium

Now that we have the frequency, we can use it to find the speed of sound in the given medium using the wavelength in the medium.

v = f × λ₂

Substituting the values: v = 2000 Hz × 1.02 m

Calculating: v = 2040 m/s

Therefore, the speed of sound in the medium, where the wavelength at the same frequency is 1.02 m, is 2040 m/s.