94.06: Which of the following statements about the speed of waves oji)0+ * ,(hutc- ckmi7 btmexun a string are tu mc(+07*-icukmxieh, b)tjt rue?
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 len*5srz5-d .hbhc)jh ryv2x6i mgth. String L has mass m and string H has mass 4m. If the speec*zxjrhsi.mbh-5 5v2hryd6 )d waves in string L is v, the speed of waves in string H is

  07.44: A person vibrates the end of a string se- 8cjyizmid0vk6 9o0fnding transverse waves down the string. If the person then doubles the rate at which he vibrate c i8yjvidmo9z0-f6k0s the string, the speed of the waves

  11.23: A string, clam vaa j,h*qk ffmwquoh85ci:pi9n5:+* ped at both ends, has its tension fixed. A wave generator vibrates the string with a frem9 f5pw,a qvj5ni*khca*h+qu: 8 :o ifquency $f$ 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 with7. z k*q8vueutge3y-u a sound wave?

  95.04： A wave has a freq2ozhqo ))nc5 tuency of 50 Hz. The period of the wave is:

  04.04： A metal bar is vibrating wxk:i0 ; n2cp8stxw cm0ith a frequency of 200 Hz. The period of oscillationx 8;ms0xn0ipc2 tc wk: would be:

  01.38: The S-waves (transverse) and P-waves (longitudinal) produced by earthqua i95hlxpr;r77 x fvhv-kes travel 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 Pr5h7;fr-ix9lhp7 xv v -waves to arrive 2 minutes before the S-waves?

  17.07: A traveling sine wave of frequency 3.0 Hz i o-nmg-ypuv 36c)m b7(3avk 7xet sk8ls known to move at 6.0 m/s on a string. Which one of the following figures best represents what a one-meter section of the string could look like at anel -cv78m7gub)( p 3avn3tm kx-ks6yo instant of time?

  13.24: Which one of the followinoq h8hqa1c 429t.kpkag statements best describes Huygens’s Principle?hp 2a1.qca8toq4hk k 9

  02.07: The diagram shows * 3(ditaqbh iad*6,jqo:s8hm two 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 represent a virtual source for the reflectah(* q:d 3b*8hmji,dt6 oisaq ed waves?

  96.03: If the frequency of sou2s 8uqilzjl:8 nd is doubled, the wavelength:

  99.27: Assume that waves are propagating in a uniform medium. Ifh.szc j fj7k-) the frequency of tzsk j)fh7 .j-che wave source
doubles then

  98.02: An observer hea h*rw6o*7+nwkym os-grs a sound with frequency 400 Hz. Its wavelength is approximatohw * gn7+w rs6-*kymoely

  The graph below was produce by a microphone in fron1*xc-p zzqxud9gjf)k) 44su yt of a tuning fork. It shows the voltage producfc1uzy4 p*sz ku- g4xx)dqj)9ed from 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 of a o6 -qf) +i.tjh yhkv6 ui1(y-uqx,pwotuning fork. It shows the v-oq.h )-yv 1ifh kxi6(y+wu6ot p,uqjoltage
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 wa3 opxuj4xwd6,)v.y y fvelength 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 = 3.0sivze17 y7v jzi-n(2.5 x − 5.0 t) where all quantities given are in MKS units, x vy -v17zz7i jeis position, and t represents time. What is the period of the wave (in seconds)?

  11.17: A new radio station broadcasts its signal with a wavelength of 3.40 mjstw erf:(f:jeo8j d4,j)z9 m. At what frequency is thiz w:9o8ts jd jfrm (je,:)4fejs station broadcasting?