Table of Contents

## How do you find the speed of sound in physics?

The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: vw = fλ, where vw is the speed of sound, f is its frequency, and λ is its wavelength.

## What is the formula for the speed of a sound wave?

The speed of the sound wave is 340 m/s. The distance can be found using d = v • t resulting in an answer of 25.5 m. Use 0.075 seconds for the time since 0.150 seconds refers to the round-trip distance.

## How do you calculate sound?

Sound intensity can be found from the following equation: I=Δp22ρvw I = Δ p 2 2 ρ v w Δ p – change in pressure, or amplitude ρ – density of the material the sound is traveling through vw – speed of observed sound. The larger your sound wave oscillation, the more intense your sound will be.

## Which is the formula for the speed of sound?

Density ρ = 0.043 kg/m3. Pressure p = 3kPa = 3000 Pa. The ratio of specific heat in air = 1.4. The formula for speed of sound is. c = √γ×Pρ. c = √1.4×3000 / 0.043. Therefore, speed of sound = 312.52 m/s.

## What happens when the speed of sound is greater?

If the speed of the sound is greater then the elasticity is more and density is less. γ = Ratio of specific heat. The sound wave with density o.o43 kg/m3 and pressure of 3kPa having the temp 30C travels in the air.

## How is the speed of sound related to elasticity?

The speed of sound is defined as the travelled by the sound wave that propagates per unit time through an elastic medium. In a perpendicular medium, the speed of the sound depends on the elasticity and density of the medium. If the speed of the sound is greater then the elasticity is more and density is less.

## Is the Mach number of an object equal to the speed of sound?

As the speed of the object approaches the speed of sound, the flight Mach number is nearly equal to one, M = 1 , and the flow is said to be transonic . At some places on the object, the local speed exceeds the speed of sound.