Tsunamis are fast-moving waves often generated by underwater earthquakes. In the deep ocean their amplitude is barely noticeable, 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 723 km and traveled a distance of 3930 km in 5.44 hr. What was the speed (in m/s) of the wave? For reference, the speed of a 747 jetliner is about 250 m/s. Do not enter unit.