94.06: Which of the followi3 a4k l,le1jar 9)usnxvs1/h png statements about the speed of waves on a string are /e9axa s l3vk 1s)upj1hn,r4l true?
I. The speed depends on the tension in the string.
II. The speed depends on the frequency.
III. The speed depends on the mass per unit length of the string.

  97.23: String L and string H have the same tension and length. Stricpn/27gz cu u7ng L has mass m and string H has mass 4m. If the speed waves in string L is v, the speed of wavesuc7ugp n/7z 2c in string H is

  07.44: A person vibrates the end of a string sending transverse waves down thz 2vq7rqz 53szq3 katw (tp*h9e str5a3q kv7t 2szqzw(*9phzt3q ring. If the person then doubles the rate at which he vibrates the string, the speed of the waves

  11.23: A string, clamped z0l,9 n9c)qjumv 5h jsf+tp5v at both ends, has its tension fixed. A wave generator vibrates the ssml5v9 5jhj ,nqc+0uvf tp9z )tring with a frequency $f$ producing waves of wavelength $\lambda$ which have speed v. The frequency of the wave generator now is doubled to $2f$. Which one of the following choices best describes the new values of the wavelength of waves produced and the speed of the waves on the string？

  95.01： Which is not associated w.zmid/ry-ri p b:gey1 +ar,xq8 v;-i y;0nuflith a sound wave?

  95.04： A wave has a frequency of 50 Hz. The period(t u8v;,a ryvf of the wave is:

  04.04： A metal bar is vibratin+jlhd5jzk39 l g with a frequency of 200 Hz. The period of oscillation whzll3d j+j k59ould be:

  01.38: The S-waves (transverqofr e7 ,qjgkdp5) y;0se) and P-waves (longitudinal) produced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 m/s, P-waves travel at nearly 7000 m/j),75or qy0; dpgqfkes, how far away must an earthquake be for the P-waves to arrive 2 minutes before the S-waves?

  17.07: A traveling sine wave of frequency 3.0 Hz is zufgi4.:l,g 9 3ggzc uus 7 mcr6pl8y0known to move at 6.0 m/s on a string. Which one of the following figures best represents what a one-mu f cc9z 7mz63gu lgp 8:,g0iluy4gr.seter section of the string could look like at an instant of time?

  13.24: Which one of the fia 8kb))6ay brollowing statements best describes Huygens’s Principle?iy)a6 8r bab)k

  02.07: The diagram shows two water pulses which were originally 6azexw0/vd*01 ny dxb produced at point A and a e0d0xw /6bd y*vnz1xare beginning to be reflected from a wide barrier as shown. Which of the points in the diagram would represent a virtual source for the reflected waves?

  96.03: If the frequency of p-th wb62bre g(49pgnsound is doubled, the wavelength:

  99.27: Assume that waves are propagating in a uniform mhj6ckr9 8v e c:2j6+ 6, fjjlovbjfuh0edium. If the frequency of the co+2,j60jjrjlhb vuvfj86fh :6 e ck9wave source
doubles then

  98.02: An observer hears a sound with frequency 400 Hz. Its wavelength is approjo:kg3-;+d tms;-wxxafwe*e xi-*xwak3:tw+mjg; d e- s xfo;emately

  The graph below was produce by a microphone in front of a tuigkv1(;c 5g28iiqsuel-lq9bk1de r9ning fork. It shows the voltage produced f 8(-v e9kg9e1iikg;u5qd1sr l2il cbqrom the microphone as a function of time.


04.18: The frequency of the tuning fork is (approximately)

  The graph below was produce by a microphone in front oft9kpdk9 bp06ujnf u0h 51m. vw a tuning fork. It shows the volta p90n0 .p9btkj56 vkhfudu1wmge
produced from the microphone as a function of time.

04.19: In order to calculate the speed of sound from the graph, you would also need to know

  06.28: A radio signal withez: .ck v5n8m.dpf)ew a wavelength of $1.2 × 10^{−4}\:m$ is sent to a distance asteroid, is reflected, and returns to Earth 72 hours and 48 minutes later. How far from Earth is the asteroid?

  08.46: A traveling wave has the form y = 3.0sin(2.5 x − 5.0 ,digyb lo0mp.g(t- 2n).gno n t) where all quantities given are in MKS units, x is position, and t reprt()mb,l2npo-.n g0g gyd in.oesents time. What is the period of the wave (in seconds)?

  11.17: A new radio station broadcasts its a nn.w289mlonmv7 2vb56xuw bd0et.v signal with a wavelength of 3.40 m. At what frequency is this station broadcnmwvnwv5 x0t672ou ambe.dl2.vb 89nasting?