physics

posted by .

a ship sends a snoar pulse of frequency 30kHz and duration 1.0 ms towards a submarine and receives a reflection of the pulse 3.2 s later. the speed of sound in water is 1500 ms-1. find the distance of the submarine from the wavelength of the pulse and the number of full waves emitted in the pulse.

  • physics -

    2 * distance = V * t

    no. of waves = frequency * (pulse duration)

  • physics -

    i still don't get it. why is the distance x 2 and what does it mean ms for the pulse duration

  • physics -

    because that distance includes there and back from the sub to the ship. so to only get the distance you have to divide by two. and ms means milli seconds so it is 0.001 seconds

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics - SHM

    Calculate the speed of the pulse from the following: y(x,t) = 2/((x - 3t)^2 + 1) Well the speed of the pulse is given by: y(x,t) = f (x - vt) for a pulse traveling to the right and y(x,t) = f (x + vt) for a pulse traveling to the left …
  2. Physics

    An electric eel develops a potential difference of 460 V, driving a current of 0.80 A for a 1.0 ms pulse. Find the power of this pulse. Find the total energy of this pulse. Find the total charge that flows during the pulse.
  3. physics

    1.calculate th speed of waves in water that are 0.4m apart and have a frequency of 2hz?
  4. physics help

    A ski gondola is connected to the top of a hill by a steel cable of length 680 m and diameter 1.7 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that …
  5. physics

    determine the following distances based on the sonar data given. a ship sends a sound pulse downward and receives the reflected sound 2.50 s later. use the formula d=vt. assume the speed of sound in sea water is 1540 m/s
  6. Physics

    A ski gondola is connected to the top of a hill by a steel cable of length 720 m and diameter 1.3 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that …
  7. Physics

    A bat in a cave emits a sound pulse and receives an echo 0.15 second later. Assuming that the speed of sound is 345 m/s, how far did the sound (a longitudinal wave!) travel during this time?
  8. physics

    The pulse duration of the transducer is 0.6 microseconds. The frequency of the transducer is 8MHz. How many cycles are contained in that pulse?
  9. physics

    a submarine fitted with a SONAR system operates at a frequency 50kHz. An enwmy submarine is now moving towards it with a speed of 450km/hr. Find the frequency of the sound received back at the SONAR from the enemy submarine. Velocity …
  10. physics

    a destroyer sends out a sonar pulse that returns from a submarine in 1.68s. if the spped of sound in the sea of water is 1531m/s, how far away is the submarine I don't really understand what the question is asking. I appreciate your …

More Similar Questions