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- 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 797 km and traveled a distance of 350 m in 14.39 h. What was the speed (in m/s) of the wave? For reference, the speed of a 747 jetliner is about 457 m/s. No need to include the unit. Write your answer in scientific notation. (1.11e+1)A boat produces water waves as it sails along a river. You notice that 10 waves hit the bank in 4.8 seconds. If distance between successive wave crests is 3.8 centimeters, how far would these waves travel in 35 seconds. Express your answer in centimeters to at least 3 significant figures.The national seismological service is designing a training for new members in which they are asked to calculate the epicentral distance simulating an earthquake of magnitude 8.5 The information provided is as follows: surface waves generally have a frequency of 0.5 Hz and the intensity of the P wave in Mexico City was 2x106 J What is the power of a area of 483 m²? m³s" 4.83× 108 W 4.141 x 10³ W 9.66 × 108 W 9.66× 102 W
- A fisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. It takes 2.6 s for the boat to travel from its highest point to its lowest, a total distance of 0.53 m. The fisherman sees that the wave crests are spaced 4.8 m apart. How fast are the waves traveling? (Give your answer in m/s.)In the Standing Wave Lab, lab partners Julio and Jose adjust the frequency of a mechanical ocillator to vibrate a 1.70 m length of elastic cord. fixed at both ends, at one of its harmonic frequencies as shown above. The frequency of vibration turns out 79.4 Hz. Determine the speed of the waves in the elastic cord. 21.4 m/s O 54.0 m/s 42.8 m/s 44.5 m/sA water skier is being pulled by a boat. As she approaches a wave that is angled at 19.0° she reaches a constant speed of 19.0 m/s. She launches off the first wave and lands on a second wave at the same height. How long was she in the air? 3.88 s 1.26 s 0.631 s 3.67 s