The lowest note on a piano is 27.5 Hz. If strings with
v = 84,7 m/s are used, how long
should the piano string be?
(Unit = m)

Explain the consequences of this addiction to the brain tissue

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves