Betty is sitting on of her surfboard out in the ocean. She is waiting for the perfect wave to come along so she can ride it in to shore. As she waits, she notices that the waves roll by in patterns, or sets. As Betty waits, she counts the number of waves that pass her during a 1-second period; she counts just 1. She estimates that the distance between crests is 6 meters. Betty sees the perfect wave and begins paddling. She pushes herself up, stands on the surfboard and rides the wave all the way in to shore, a distance of about 60 meters. It takes her about 10 seconds to ride the wave in. Use two methods to calculate the speed of the wave based on the information presented. Are they the same? Explain how you got your answers.

Two sailors are trying not to get seasick as their ship plows through waves on the ocean. They notice the ship bobs up (crest), back down again (trough), and back up (next crest) every 4 seconds.If the speed of these waves relative to the ship is 3 m/s, how far apart are the wave crests (in meters)?

Ocean waves approaching the shore can be described as sinusoidal periodic waves with amplitude 4.4 m and wavelength 3.8 m.Two swimmers are in the ocean, with swimmer C 2.4 m further offshore than swimmer D. If at some instant in time swimmer C is at the crest of the wave, how far below swimmer C  will swimmer D be at the same time?Give your answer in metres.

When a wave breaks against the shore, the crest outruns the trough and the crest collapses in this type of wave?

What do waves do as they encounter an island?Group of answer choicesbend to the rightbounce backwrap aroundbend to the leftdiffract

A ship anchored in a port has a ladder which hangs over the side. The length of the ladder is 200cm, the distance between each rung in 20cm and the bottom rung touches the water. The tide rises at a rate of 10cm an hour. When will the water reach the fifth rung?