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Assignment help 1440

  1. A water wave has a frequency of 16 Hz and wavelength of 2.0 m. (a) What is the period of these waves? (b) What is the wave velocity?
  2. A submarine sends a sonar signal, which returns from another ship 1.06  s later. What is the speed of sound through water if the ship is 800. m from the submarine?
  3. You see condensed steam expelled from a ship’s whistle 2.00 s before you hear the sound. What is the air temperature if you are 700. m from the ship?
  4. Sound from the siren of an emergency vehicle has a frequency of 700.0 Hz and moves with a velocity of 345.0 m/s. What is the distance from one condensation to the next?


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