Halle la velocidad de las ondas de una cuerda de violin de 820 g/m y 22cm de longitud, si la frecuencia de la fundamental es de 920 hz. Calcule la tensión de la cuerda

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

Can you match these to the correct definition

Which describes increasing the efficiency of energy resource