A water-skier is moving at a speed of 14.3 m/s. When she skis inthe same direction as a traveling wave, she springs upward every0.838 s because of the wave crests. When she skis in the directionopposite to that in which the wave moves, she springs upward every0.476 s in response to the crests. The speed of the skier isgreater than the speed of the wave. Determine
(a) the speed and
(b) the wavelength of the wave.