In: Physics
A satellite a wave generated from the site of an underground earthquake near the Mariana Trench. After one hour the wavefront has moved about 650 km. The wave looks mostly sinusoidal and has a period of about 30.0 min. The amplitude was initially about 50.0 cm. A) What is the speed of this wave? B) If a fishing boat was in the path of the wave, how many times will it bob up and down when the wave hits? Do you think the crew will notice? C) When the wave reaches shore it will slow down significantly (by nearly a factor of 10 or more), without losing significant energy. Can you give a physical argument why as the wave slows down the amplitude will increase?