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The four diagrams below represent particles of gas experiencing different longitudinal waves. Which longitudinal wave has the greatest amplitude?

What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value