A boat at anchor is rocked by waves whose crests are 26 m apan and whose speed is 7 m/s. a) What is the frequency (Hz) of the waves and b) What is the period I (seconds) of the waves

"iew Policies Current Attempt in Progress Tsunamis are fast-moving waves often generated by underwater earthquakes. In the deep ocean their amplitude is barely noticab 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 679 km and traveled a distance of 3410 km in 4.93 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. (a) Number Units (b) Number i Units (c) Number i Units eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer 000

= frequency X wavelength 1. A boy throws a rock into the lake creating waves with a frequency of 10.0 Hz and a wavelength of 20.0 m. What is the speed of the wave? Ich

Some Hawaiian tsunamis For an interval of 45 minutes, the tsunamis near Hawaii caused by the Chilean earthquake of TT 1960 could be modeled by the equation y = 8 sin -t, 6 where y is in feet and t is in minutes. (a) Find the amplitude and period of the waves. (b) If the distance from one crest of the wave to the next was 21 kilometers, what was the velocity of the wave? (Tidal waves can have velocities of more than 700 km/hr in deep sea water.)

6. A crew member on the deck of a ship notices that wave crests pass the bow of his anchored boatevery 4.0 s. Another crew member measures the distance between two crests to be 8.5 m. How fastare the water waves traveling?