An astronaut is rotated in a horizontal centrifuge at a radius of 5.0 m. (a) what is the astronaut’s speed if the centripetal acceleration has a magnitude of 7.0g? (b) how many revolutions per minute are required to produce this acceleration? (c) what is the period of the motion?

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.

When you turn on a battery-operated device, an electrical circuit is

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?