How much of a standing wave fits within a closed tube when the wave is vibrating at its fundamental frequency? 1 wavelength
¾ wavelength
½ wavelength
¼ wavelength

come closer and become far apart and become steam/gas

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

there are no atoms

answercollision;