94.06: Which of the following statements about the speed of waves on a 6)brlkmbb.m5 n+ 8g *aztk,jlstring are trlm a bgljk ztk8.+*)n6,mbbr 5ue?
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 anda(4eu1 0f53sr5tob.uzlbuls length. String L has mass m and string H has mass 4m. If the speed waves in string L is v, the spesll5f.r34bt5 bu0 as z1ueuo(ed of waves in string H is

  07.44: A person vibrates the end of a string pqnkw zvce h/lo7 t 0*5,j6(xqsending transverse waves down the string. If the person then doubles the rate at which he vibrates the string, the speed oj k,0v znlxch*6pqt7 w/ eq5o(f the waves

  11.23: A string, clamped at both ends, has its tension fixed. A wave ge do-hpued. 2d3nerator vibrate2o-du.h ddep3 s the string 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 with aimnjkw+u 0v50t/9wwf sound wave?

  95.04： A wave has a frequency of 50 Hz. The bs. z54ff4 cwj7.retfperiod of the wave is:

  04.04： A metal bar is n s vbw;y6; gwr)av24rvibrating with a frequency of 200 Hz. The period of oscillation would be:n rv4ywrv6 aws) ;;b2g

  01.38: The S-waves (transverse) and P-wavj.s4n s xd6)daawjws +o4; va-m sx+;ves (longitudinal) produced by earthquakes tra;axad4joww ;- dj )ns ms++4svs .6xavvel at different speeds through the earth. S-waves travel about 4000 m/s, P-waves travel at nearly 7000 m/s, how far away must an earthquake be for the P-waves to arrive 2 minutes before the S-waves?

  17.07: A traveling sine c-b jq/tpv0ju9)vk i r7r,sj5wave of frequency 3.0 Hz is known to move at 6.0 m/s on a string. Which one of the following figures best represents wv uqic -b),p7vtjkj0s5r 9/jrhat a one-meter section of the string could look like at an instant of time?

  13.24: Which one of the following statements best describes Huygens’s Prqx967;kdzc+h k f+ 9he 0gewkfinciple?9xhg+fqwkkc6;+kh79f e de z0

  02.07: The diagram shows two water pulses which were 5+gj .qfp4zzjjl5jw8 originally produced at point A and are 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 wave+g 4jp8fzjz q.55ljjws?

  96.03: If the frequencq(x6 l w5 jqcs+a6ko- fcpom72y of sound is doubled, the wavelength:

  99.27: Assume that waves are propagating in shzy-f3f0 kw3 a uniform medium. If the frequency of the wave source h03zwk-sff y 3
doubles then

  98.02: An observer hears a sound with freque x07k/(*o p9z+ lzwrbucaf y.ggs0ja;ncy 400 Hz. Its wavelength is approximatelz+9(a7bajp y 0o0ck*gruw sg;zlx f/. y

  The graph below was /c 07,oqa)ljdr:v lgpproduce by a microphone in front of a tuning fork. It shows the voltage produced from the microphone as a function of timcla)qvdpo0r:,g/j l 7 e.


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

  The graph below was produce by a microphv. 6 7zjkvu0mzone in front of a tuning fork. It shows the voltage jv. uv67zkzm0
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 with a wavelengte gz,ez4 sdo;)h9a,b bh 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 t) where allc)fr;j*t a59 1thcsby quantities given are in MKS units, x is position, and t represen1hfcr5 ab9 t *s)yct;jts time. What is the period of the wave (in seconds)?

  11.17: A new radio station broadcasts its signal with a wavnp 6jn-9;m/ v7mxk2vqi sc . mt2al-phelength of 3.40 m. At what frp6/-pkx; amsmm2tli2 -cnv vj9.qn7 hequency is this station broadcasting?