Longitudinal wave above its matching transverse wave

An example figure from the Wave Generator.

A longitudinal wave drawn as vertical lines, bunched at a compression and spread at a rarefaction, above a transverse wave on a displacement–distance grid, the compressions directly over the crests — A longitudinal wave drawn as a row of vertical lines, above the transverse wave it matches on numbered axes. The lines bunch together at each compression, right above a crest, and spread apart at each rarefaction, above a trough. A compression, a rarefaction, a crest and a trough are labeled, and the wavelength λ and amplitude A are marked.

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Answer key

Amplitude: 3 cm
Wavelength: 4 m

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