A physics student constantly swings a slinky side to side, with an amplitude of 20 cm. This motion generates a standing wave. How could that standing wave be described? antinodes = 20 cm, nodes = 0 cm, wavelength = 1.5 LaTeX: \lambda antinodes = 20 cm, nodes = 0 cm, wavelength = 1.75 LaTeX: \lambda antinodes = 40 cm, nodes = 0 cm, wavelength = 1.5 LaTeX: \lambda antinodes = 40 cm, nodes = 0 cm, wavelength = 1.75 LaTeX: \lambda