94.06: Which of the follow:o:(qj)vefu j ing statements about the speed of waves on a string are true? u(v:jqo f:e j)
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 0w5p,(je,w +ltitjt2ikq4 hl tension and length. String L has mass m and string H has mass 4m. If the speed waves in strin2w pitj lw 5,jeqith(4l0+t, kg L is v, the speed of waves in string H is

  07.44: A person vibrates the end of a string s1wsz(0zxbd 9 +q4ji8pi rlx s3ending transverse waves down the string. If the person then doubles the rate at which he vibrates the string, the speed of th d+ zq931rwlsx iix(8bj40pzs e waves

  11.23: A string, clamped at both ends, has its tension fixed. Ao01a itv 78e9 gsuq-nea;w4np wave generator vibrates the stq8t ;i01vs n7ageu o9n-wepa4 ring 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;kl+i mslozs 4;q uv;; a sound wave?

  95.04： A wave has a frequency of 50 Hz. The period of the wave is:/+vmk ;o ngh1kidca-b2l6 ej7

  04.04： A metal bar is vibrating with a frequency of 200 Hz. The a .h1 q glfexrq:i.o +;(tfnm0period of oscillation woul+r.tog f (q:feqm ;xi. lnh01ad be:

  01.38: The S-waves (transverse) rd1 c e7bu0c - 3iwgemge)(hp+and P-waves (longitudinal) produced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 m/s, b+r1 ()wc3c edmpiuge7heg-0 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 wave of frequency 3.0 Hz is known to move at 6.0 m-w-( h aiq7vex0xsj 7.gbdq 5j/s on a string. Which one of the following figures best represents what a one-meter section of the string could look lx j-0ja(i7ew g.-qd 5 xbvh7sqike at an instant of time?

  13.24: Which one of the following y4xikn5 1r 3qs7 o-ugqstatements best describes Huygens’s Principle?qo5 sy14r3gq-7uknx i

  02.07: The diagram shows two water pulses which were orig16pv:i* 9 yua qnj/sqpinally produced at point A and are beginning to be reflected from a wide barrier as shvq pyji:* a6/p9u n1qsown. Which of the points in the diagram would represent a virtual source for the reflected waves?

  96.03: If the frequency of sound is doubled, the wy-/t q df*et3davelength:

  99.27: Assume that waves are propagating in a uniform ulb .snen j09(medium. If the frequency of the wave s(9b0uj n lne.source
doubles then

  98.02: An observer hears a sound with frequency 400 Hz. Its wavelength is fgkmp 9 i52l4capproximatef5g i9lm4 2kcply

  The graph below was produce by a michoy-22p3g- q p.zcwuq/jjnv ,rophone in front of a tuning fork. It shows the voltage produced -jqgj/y .w22puoh-q npc3z ,vfrom the microphone as a function of time.


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

  The graph below was 6f4i)wv 5 ;ym*iwosgt produce by a microphone in front of a tuning fork. It shows the volta g4 ifvyom5;iw)6ts* wge
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 wavq:m3uh i6ut.jelength 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) wheron /jam3 v38dbe all quantities given are in MKS units, x is position, and t represents time. What is the period of the wave (invaob/3jn d3m 8 seconds)?

  11.17: A new radio station broadcasts its signal with a wavwx*bk: 7mw u6zelength of 3.40 m. At what frequm6*w: 7wubxkz ency is this station broadcasting?