19
Nick and Kara were lounging on rafts in the shallow waters of the beach at Lake Bluebird. They were
paced 1.8 meters apart. A motorboat zoomed past creating ripples that traveled towards Nick and Kara.
Nick and Kara's rafts began to bob up and down as the ripples passed by them, making exactly 4 up and
lown cycles in 8.4 seconds. When Nick's raft was at a high point, Kara's raft was at a low point and there
vere no crests between their boats. Determine the wavelength, frequency, and speed of the ripples Assume
hat the ripples, traveled in a direction parallel to the imaginary line, connecting the two rafts.