a) Ocean waves move toward the beach with a speed of 8.90 m/s and a crest-to-crest separatiion of 15.0 m. You are in a small boat anchored off shore. At what frequency do the wave crests reach your boat?
b.) You now lift the anchor and head out to sea ata aspeed of 15 m/s. At what frequency do the wave crests reach your boat now?