Homework Help: Physics

Posted by Jena on Tuesday, December 5, 2006 at 8:51pm.

Tsunamis are fast-moving waves often generated by underwater earthquakes. In the deep ocean their amplitude is barely noticable, but upon reaching shore, they can rise up to the astonishing height of a six-story building. One tsunami, generated off the Aleutian islands in Alaska, had a wavelength of 747 km and traveled a distance of 3830 km in 5.03 h. (a) What was the speed (in m/s) of the wave? For reference, the speed of a 747 jetliner is about 250 m/s. Find the wave's (b) frequency and (c) period.

change units to m and second.

speed= distancetraveled/time

frequency=speed/wavelength

period= 1/frequency.

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