94.06: Which of the following statements about the speed of waves on a 8 *7c: :99h edgyciufy3c xvnxstring are true?i9ux7yhc*f:3cdv9 cn8 ge: x y
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 lengt;:3;nkeh+vg pai1ymgf s u4swp8b:7mh. String L has mass m and string H has mass 4m. If the speed waves in string L is v, the speed of waves in string Hgfu gm;+7hn:3;map ysbw81i : v ekps4 is

  07.44: A person vibrates the ek-ki goo;g 23 fwa*t;bc0zo7 bnd of a string sending transverse waves down the string. If the person then doubles the rate at which he vibrates the string, the fob o2;-k; gzwg kt cb*7oi0a3speed of the waves

  11.23: A string, clamped at both ends, has its tensio3x.c.h xbnai1 n fixed. A wave generator vibrates ti.nxc ah.1x3 bhe 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 associag 1aojy.:q k)zted with a sound wave?

  95.04： A wave has a frequency of 50 Hz. The pe7 nt2zkvsfp k2g ):cb(riod of the wave is:

  04.04： A metal bar is vibrating with a frequency of 200 Hz. The period of oscirl:*4cwr 3hijk (*h9+nb :hs nz7 eb* ghpe9tillati+*ljbis3*hb:7th 9he*grn ihk9c n4 pz(wr :eon would be:

  01.38: The S-waves (transverse) ands/rjseqc r( +4ce4nh,o9mcs0 y9j1gv P-waves (longitudinal) produced by earthquakes travel at dig0 esrv1js4/oc q9,(sm hycc4r9j+ n efferent 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 sp5 n53mbbc/ ,fmp lf ,w+7yadcine wave of frequency 3.0 Hz is known to move at 6.0 m/s on a string5wndympl7,f pa,bm 3+ 5c/bfc. Which one of the following figures best represents what a one-meter section of the string could look like at an instant of time?

  13.24: Which one of the following statements bestln) fn5;gg1nu describes Huygens’s Principle?l u)g1n nn;gf5

  02.07: The diagram shows two water pulses which were originally produced ati s 4 w mtc75fno)5 :.apz1adzybaz :6j3pmv8s point A and are beginning to be reflected from a wide barrier as shown. Which of the points in the diagram would represao szzy6m 5ij) tb1n. am p p73v8c5s4w:fadz:ent a virtual source for the reflected waves?

  96.03: If the frequency of sound is doubled, t3nqfx 2d- cp60xc5 zakhe wavelength:

  99.27: Assume that waves are propagating in a uniform medium. If the fj- aw) 0h c:q2o zagn+tiodb38requency of the wave sourcetz ca)w:qo bg ohjn d-0ai8+32
doubles then

  98.02: An observer hears a sound with6u p.9 baqp mbl,:qw+h frequency 400 Hz. Its wavelength is approxqa+qpml9p :.b hbu,w6imately

  The graph below was produce by a microphone in froj8pc 0;lucf7r g44rn unt of a tuning fork. It shows the voltage produced frp0 8u7c;lfgrn4cujr4 om the microphone as a function of time.


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

  The graph below was produce by a micr .r *n t24+t.x m. y,4gfjfyk.hjwinymy1l5srophone in front of a tuning fork. It shows the voltf +yh.xjnf .4r,4ymy*lw 1it.5j2tngy k. srm age
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 wavelen8pkk0 3;gcdm1r: cxkq gth 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 forjemcyz)5*r( uy)1se4 43o bdw:vk qe om y = 3.0sin(2.5 x − 5.0 t) where all quantities given are in MKS units, x is position, and t represents time. What is the)4k1ewm(oby*c5vedq : yo erj)zu 34s period of the wave (in seconds)?

  11.17: A new radio station broadcasts m1g(v 6j oetr2omf6-l its signal with a wavelength of 3.40 m. At what frequency is thi6eo 2-mgm frol jt16v(s station broadcasting?