94.06: Which of the followin8c 8y t3jwaoj7- 9trewg statements about the speed of waves on a string are true? tce w-wj8y9 toa8rj 37
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. String L has06s+x i:tk om.quvs+7 fw a*lz mass m and string H has mass 4m. If the speed waves in string L is v, the speed of waves in af*mv 7 .si0 qk x:+l6wsot+zustring H is

  07.44: A person vibrates the end of a string sending transverse wavev; 91za t4o i;zpspxp,s down the string. If the person then doubles the rate at whichx o 4,ppa9i;;p1t svzz he vibrates the string, the speed of the waves

  11.23: A string, clamped at both ends, has its 3gy.8kbi g;ayv64 tsz tension fixed. A wave generator vibrat6s g ;yz34 kgia8yb.vtes 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 a sound w-/r+.5o 1:nvmjel bhdahyw+y4p6xie ave?

  95.04： A wave has a frequency of 50 Hz. The period hbhsvbzf89 -l-3r+ tc of the wave is:

  04.04： A metal bar is vibrating with a frequency of 200 Hz. ybc ymf9y6 pv3 -o9:gaThe period of oscillation woup-vy6a9 f9y3com:ygbld be:

  01.38: The S-waves (transverse) and P-waves (longir.q+vj3x r dgr9j j6)itudinal) produced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 m/s, P-waves travel at nearly rd rrj+9gjq6v3i.x) j7000 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 sinejto p2+.w eqz2 wave of frequency 3.0 Hz is known to move at 6.0 m/s on a string. Which one oe2tj p 2qo+.zwf 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 best describes Huygens’s Prf(48j o to9cfjgeu7ra-h *ivd oe(7 t*xp;q(r inciple?o8* ( 4t j 7 cq(jrix; u7-evted*orpaho9fgf(

  02.07: The diagram shows tyupn(s6ar*xf. l s xp6,k-;ezwo water pulses which were 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 reprenz xk-y (p,6us l;rfp*aex 6s.sent a virtual source for the reflected waves?

  96.03: If the frequency of sound is doubled, the wg.h(qlcsxj eb- 6an 9)avelength:

  99.27: Assume that wave h: bnd5jrejq8+ mh),zbxq,*us are propagating in a uniform medium. If the frequency of t,b8jh)h mqqjxbzd:5* +renu , he wave source
doubles then

  98.02: An observer hears a sound with fr*wwfv;d )( roriijt1 /equency 400 Hz. Its wavelength is approximatel1i)w ti;(or/*dvfw rjy

  The graph below was produce by a microphoneb6cr.7k5pijfr -7kny,x )c ro in front of a tuning fork. It shows the voltage produced from the microphone ai kky. bo6r7pjf,r rx7)5n cc-s a function of time.


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

  The graph below was produce by a microphone in front of a tun+dswe 4/t7axl me1k50bfbh. ping fork. It shows the voltagebtb/7xeh+ 4 sfea md 1wl.kp05
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 ws)8u/ y* 4oqdguu l9jn g9,qdcavelength 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 = 3.0si7ad)rz94xwztd enn-t9n p.(a k uu35fn(2.5 x − 5.0 t) where all quantities given are in MKSute3u7w9z f dnp( t5adn9 -z4.n rka)x units, x is position, and t represents time. What is the period of the wave (in seconds)?

  11.17: A new radio station broadcasts its signal wi4nqxlr2 a .1ju2g6jjky l0s;rth a wavelength of 3.40 m. At what frequency x.r 102glj uqy nlkj4 ars;2j6is this station broadcasting?