94.06: Which of the following statements abouz,+2 dygzdcn+ t the speed of waves on a string are tr+gn 2yd+ z,dczue?
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 samo0fo/ztf n g2k;1;d nd)b.okd.q/ djwe tension and length. String L has mass m .o;.)tno zd/;d o /q f0 fjgwdn12kkbdand string H has mass 4m. If the speed waves in string L is v, the speed of waves in string H is

  07.44: A person vibrates the end obgw* d;ic34orf a string sending transverse waves down the string. If the person then doubles the rate at which he vibrates the string, the speed of th ;ogirb4d 3w*ce waves

  11.23: A string, clamped at both ends, has its tension fixed. A wave generator /ywp1c/r q,fc- ycs)7y o.qaw) tjs- xvibrates sj.7ofsqw xc ) t)c-,yq/1wpa/cr- yythe 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 sn 2(+( gj,nnf7c.xwe6vi be vaound wave?

  95.04： A wave has a frequency of 50 Hz. The period of the0zy1ad d uz: 4mn2tah7 wave is:

  04.04： A metal bar is vibrating with a f *kde09a.viwh28ln1w/bbu w5s1u yg jrequency of 200 Hz. The period of oscillation would 1lh 29vuj *nyauw1ei b5wwsd/ k0.g b8be:

  01.38: The S-waves (transverse) d.)ul6r d o0rv3 iernpkza, ;.jtsi 81and P-waves (longitudinal) produced by earthquakes travel at differendr, v0. ii t;)rod3kz8ju npar.1l6est 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 sine wave of frequency 3.0 Hz is known to m f1 mra+vav ..zl/saoz:z2cj )ove at 6.0 m/s on a string. Which one of the following figures best represents what a ajc):fm+rzv .vsz 1z. aa/lo2 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 Prine4e3oq9e(pljq m:b .c-udbq 7 ciple?9lepqedq7-uem3c:4 o b qj b(.

  02.07: The diagram shows two hm tfo;y :::c oc)d,vt-3vwnqwater pulses which were originally produced at point A and are beginning to be rncq:vtwvm:d :fy-;3)coh o t,eflected from a wide barrier as shown. 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 wavelr1wjct8t 59*oitxvs;7 yln h 0ength:

  99.27: Assume that waves are propagating in a uniformnyy04d.w e-.edqy+mv medium. If the frequency of the wave source ed+m y.-dvneq4y w0.y
doubles then

  98.02: An observer hears a sound with frequency 400 Hz. Its wavelengt dmi;llxbfe. :3lg(0 eh is approxix:llie ;fmd 3gb(l0.emately

  The graph below was produce by asg o*z djy n)-v32 i/r3xi/snm microphone in front of a tuning fork. It shows the voltage produced from the microphone as a functirv nsyg)z2s 3i /3*ixjmn-/odon of time.


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

  The graph below was pruex ta;oclj lmo -*50/oduce by a microphone in front of a tuning fork. It shows the vx;*l u-cmejola5o/t0 oltage
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 .8ha;h4 nsfdg :sebn,wavelength 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 − t a)pj,k)nt,h5.0 t) where all quantities given are in MKS units, x is po,,)p kthnatj) sition, and t represents time. What is the period of the wave (in seconds)?

  11.17: A new radio station broadcasts its signal with a nef5sdi ovlkwv ;) +-(rax*b9wavelength of 3.40 m. At what frequency is this stax9*ioknv-r) +b; wdav5 (slfetion broadcasting?