Temperature-Dependent Velocity
The velocity of sound is temperature dependent. The approximate formula for calculating velocity is
The Effect of Altitude on the Velocity of Sound in Air
The theoretical expression for the speed of sound, c, in an ideal gas (air, for example) is
It can be seen that the velocity is dependent only on the type of gas and the temperature and is independent of changes in pressure. This is true because both P and ρ decrease with increasing altitude and the net effect is that atmospheric pressure has only a very slight effect on sound velocity. Therefore the speed of sound at the top of a mountain would be the same as at the bottom of the mountain if the temperature is the same at both locations.
Related posts:
FUNDAMENTALS OF ELECTRIC SYSTEMS:LENZ’S LAW
Wiring Methods for Lighting Circuits:Miniature Circuit Breakers
Review For Test Instruments and Services
Shorted Turns in the Shunt Field Symptoms
Wiring and Troubleshooting Static Control
FUNDAMENTALS OF ELECTRIC SYSTEMS:CAPACITORS
Feedback Control Theory:Frequency Response
CONTROL FUNDAMENTALS:FILTRATION
ELECTRONIC CIRCUITS AND DIGITAL:COMMON LOGIC CIRCUITS
summary Of Ohm’s Law
Single-phase motors:Capacitor Start-and-Run Motor
Digital Logic:The NAND Gate
Hardware Bible - Introduction
Engine Piston System part3