spherical wavefront – RENAISSANCE PHYSICS

SOUND: What is the Sound-Intensity and Perceived Increase in Loudness at 1/4th the Distance?

Mr. Titus Tulay recently purchased a home four blocks from a busy tollway. On a typical evening, the decibel level resulting from tollway traffic is 62 dB at the location of his house. Determine the decibel level of a house 1 block from the tollway (four times closer). Essentially, a decibel reading tells us howContinue reading “SOUND: What is the Sound-Intensity and Perceived Increase in Loudness at 1/4th the Distance?”

SOUND: Intensity As a Function of Distance From a Point Source

The First Law of Thermodynamics states that ” energy cannot be created or destroyed. ” Thus, the Wattage ( W ) in units of Joules per second ( J/s ), whether it be generated by an electric circuit, laser beam, ocean wave, falling skydiver ( drag force times drag velocity in W = Fv ),Continue reading “SOUND: Intensity As a Function of Distance From a Point Source”