In shallow water of depth d, the speed of waves is approximately v = (gd)1/2 - shallow water wave speed equation. Find (a) the speed and (b) the period of a wave with a wavelength of 2.6 cm in water that is 0.75 cm deep. Tsunamis can have wavelengths between 100 and 400 km. Since this is much greater than the average depth of the ocean (about 4.3 km), the ocean can be considered as shallow water for these waves. Using the shallow water wave speed equation from above, (c) find the typical speed for a tsunami.

A dolphin uses echolocation underwater to "see" its surroundings. If the speed of sound in the ocean is 1530m/s, how long would it take for the dolphin to hear an echo if the ocean floor is 2.57km below it?

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)

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