94.06: Which of the following statements about t h1/)a/w .kk-yu y wzuqpsp(-c9)dkchhe speed of waves on a string are true?kk(u uycsyz9) w/p-aw./)hqphkc 1d -
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 bk n86n9m:ui8hl; eap H have the same tension and length. String L has mass m and string H has mass 4m. If the speed waveln6k;e mh8pbu 9n :a8is in string L is v, the speed of waves in string H is

  07.44: A person vibrates th x1vnlu9-d +skfh.p 9ee end of a string sending transverse waves down the string. If the p+hu9f9 evnpd.kx-l 1serson then doubles the rate at which he vibrates the string, the speed of the waves

  11.23: A string, clamped at botz j+qt 2;k8cqz a m6( ,cp1hckln)y8shh ends, has its tension fixed. A wave generator vibratesy lchkz c;kc62at(8+1, zpjnq )qmh s8 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 66b/qxl xykc. a sound wave?

  95.04： A wave has a frequency of 50 Hz. The period of the w692gp i,(3l(hj tpbgko xn 9ckglk1n6ave is:

  04.04： A metal bar is vibrating with a frequency of 200 Hz. Th1z(k :m:ee+4x1zlcpoy5lklr e period of oscilla+my : klzor (e 4l1z:kxcp15letion would be:

  01.38: The S-waves (transverse) and P-waves (zt2ns i5 w7x-mlongitudinal) produced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 m/s, P-waves travel at nearly 7000 m/s, w5z-i sx7mt n2how 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 tze3n-ob; e d+bo move at 6.0 m/s on a string. Which one of the following figures best represents what a one-meter section of the streb -oend+ ;b3zing could look like at an instant of time?

  13.24: Which one of the following8t.t dif7-vft statements best describes Huygens’s Principle? d78iftft .-tv

  02.07: The diagram shows two water pulses which were oriyp ph/ dnq4v4a*pr; z,ginally 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 waves? 4py/appr 4* ;dv,zhqn

  96.03: If the frequency of sound is doubled, the waveleng:7 t.6,vpin* rvhrirbth:

  99.27: Assume that waves are propagating in a uniform medium. If the 3k8bh kos3b2o frequency of the wave skob83ok bh 32source
doubles then

  98.02: An observer hears a sound with freq4 ;*-tj: omkibv*arvr uency 400 Hz. Its wavelength is approximateljmr *v;:-vkot ar*i4 by

  The graph below was produce by a microphone in front of a tuw+m 6 o m1+ulgpbz:x 5cv/lzd+ning fork. It shows the voltage produced from the microphone pg lz o/+zmd l+:+1wumc5v6xb as a function of time.


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

  The graph below was produce by a microphone in ho,av.wxl11j front of a tuning fork. It shows the ,.aov l jh1w1xvoltage
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 wavel(:wuvhvru 2)s8 ;n.vc/ m iwgjength 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 foru6vrhlbj. tf8 s-.dp8zf ):yg m y = 3.0sin(2.5 x − 5.0 t) where all quantities gi r:t8ff-6yjh8dlgs.u z. bp)v ven are in MKS units, x is position, and t represents time. What is the period of the wave (in seconds)?

  11.17: A new radio statpaf- 8gt( c0/c,zq cnmion broadcasts its signal with a wavelength of 3.40 m. At what frequency is this station broadcaspqcz8cf0c/ gn tm(a, -ting?