A ship is going north with a speed of 200 m/s. The waves going 300 m/s west is affecting the velocity of the ship. Find the resultant velocity of the ship. Find the resultant of a vector 40 m/s south and a vector 50 m/s west.
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- How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 40.0 m and a propagation speed of 5.00 m/s?The amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does the amplitude of a sound wave increase if the sound intensity level goes up by 40.0 dB?One clue used by your brain to determine the direction of a source of sound is the time delay t between the arrival of the sound at the ear closer to the source and the arrival at the farther ear.Assume that the source is distant so that a wavefront from it is approximately planar when it reaches you, and let D represent the separation between your ears. (a) If the source is located at angle u in front of you , what is in terms of D and the speed of sound v in air? (b) If you are submerged in water and the sound source is directly to your right, what is t in terms of D and the speed of sound vw in water? (c) Based on the time-delay clue, your brain interprets the submerged sound to arrive at an angle u from the forward direction. Evaluate u for fresh water at 20C.
- A series of ocean waves. 240 m from to crest and moving past an a rate of per secendhas what speed?Please Help Two identical traveling waves, moving in the same direction, are out of phaseby π/2 rad. What is the amplitude of the resultant wave in terms of the commonamplitude ym of the two combining waves?The amplitude of a wave propagating in the -x direction is 0.37 m, its period is 0.77 s and its speed is 12 m/s. Find the equation of the displacement of this wave.
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