When is the magnitude of the acceleration of a mass on a spring at its maximum value?
o a. when the mass has a speed of zero
ob. when the mass is moving upward
c. when the mass has no displacement
• d.
when the mass is 1/2x

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.

Which feature indicates that mars resides in the inner region of the solar system

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.