You shout the word "hello!" into an idealized echo tube. Five seconds later, the "hello!" returns to your ears. Assuming the speed of sound is 340 m/s, how long is the echo tube? The echo is happening perfectly linearly, i.e. no bouncing off the sides of the tube. Just straight down and back again

Ocean waves with a wavelength of 40.0 m travel at 5.00 m/s towards a boat at sea. Determine the number of times the boat bobs up and down per minute as a result of encountering the waves.

A stationary boat in the ocean is experiencing waves from a storm. The waves move at 56 km/h and have a wavelength of 160 m, both typical values. The boat is at the crest of a wave. How much time elapses until the boat is first at the trough of a wave?

Yellow light travels at a speed of 1.97 108 m/s through a certain glass block. The wavelength of light transmitted through this kind of glass is 3.835 10-7 m. What frequency does yellow light have?Hz.

While attending a large fireworks event with music, you decide to stay 1 kilometer away because of the crowds.  However you have a good view, and you can still hear the booms, as well as the music.   Given a speed of sound on a warm moist summer night of 340 m/s, select those that apply.     The music is out of phase with the fireworks and occurs about 6 seconds early     The booms follow the flashes you see by about 3 seconds.     The music is out of phase with the fireworks and occurs about 3 seconds late.     The music has the wrong pitch with its frequency changed by the time it takes to reach  you.     The booms are so loud they occur at the same time as the flash of fireworks explosion.

It's Christmas time and you blast your Christmas music with the windows down in your car. Your grinchy roommate hears your music 30 meters away. The final note in the song is a B, playing at 493 Hz, but your roommate smiles because to him it sounds like a B-flat, playing at 440 Hz. How fast are you driving relative to your roommate? And in what direction?

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)

In a loudspeaker, an electromagnetic coil rapidly drives a paper cone back and forth, sending out sound waves. If the cone of a loudspeaker moves sinusoidally at 1.2 kHz with an amplitude of 3.5 mm, what are the cone’s maximum speed and acceleration?

In echolocation, a RADAR used infrared to determine the distance of a far away object. Estimate this range if the sender has received the reflected signal after 5.0 µs. 1.5 km 15 km 60 km 6.0 km

A group of hikers hears an echo 1.00 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 342 m/s.) m