A speaker connected to an oscillator emits a continuous sound wave of constant frequency \(f\) into a long, uniform horizontal tube. The left side of the tube is filled with air, and the right side is filled with helium gas at the same temperature and pressure, separated by a thin, flexible membrane that transmits mechanical oscillations without reflection. Because helium atoms have a much smaller molecular mass than the molecules in air, mechanical disturbances propagate faster through helium at a given temperature. How do the wave speed \(v\) and the wavelength \(\lambda\) of the sound in the helium compare to their values in the air?