94.06: Which of the following statements about the spe hq- vyf ,5yc0t mc:vpg0v,vm0ed of waves on a string are true? 50f ,hmcmv: g 0,v0yp- tyvvqc
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 Hg22 tlj*o;xq/ pgsbgqmkh c-fj0484v have the same tension and length. String L has mass m anbfm4g2l s 8kx-/q;c4o p q0vgh2*jgt jd 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 of a string sending transverse waves down the sdw hx:n6 u1 7pc3im.hhtrin3h1 dx p6muci.whn:7hg. If the person then doubles the rate at which he vibrates the string, the speed of the waves

  11.23: A string, clamped at both ends, has its tensid g/qo:x bxe7 r/:v*soon fixed. A wave generator vibrates the oqe/ s*v :bx:/gxor7 dstring 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 assocd d*l4xgjv8dpn,2 wb 6iated with a sound wave?

  95.04： A wave has a frequency of 50 Hz. The perm 4z1uoy igib-ig8;/ siod of the wave is:

  04.04： A metal bar is vibrating with a frequency of 200 Hz. The pj: *swgc zkvk k4ku7:)eriod of oscillaticguk:*4zw )kvjk :k s7on would be:

  01.38: The S-waves (transverse) and P-waves (longitudinal))e5kzuj lq xvu/e1*oi0lw*) i produced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 mvw*5e)ijk0 liz 1x l)*uoqu /e/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 move at 6qea9 p,7lb bgs(+rsz (.0 m/s on a string. Which one of the following figures best represents what a one-meter section bg( 7 srp ,za9(s+qeblof the string could look like at an instant of time?

  13.24: Which one of the following state-vf dv1gs z+hu.15ab dments best describes Huygens’s Principle?vdv 5dzbufg .+a1sh1-

  02.07: The diagram shows two water pulses which were origi,p v4e9daf*nr nally produced at point A and are begn4a v,f 9re*pdinning 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?

  96.03: If the frequency of sound is doubled, the wavkpx (ql ;-5pqeelength:

  99.27: Assume that waves are propagating in a uniform medium. If rsv9ix mhdu y ),i614tthe frequency of the wave source )iti d6 uryhsm 14,9xv
doubles then

  98.02: An observer hears a sound with frequenlvivqk -1(s+ebw(dzth/ mf45 cy 400 Hz. Its wavelength is approximawhlkeqb4 sz(dv -5v/m1+( fit tely

  The graph below was prc 3 *:ode22w zyr dp4n5x9trlqfq4u3ooduce by a microphone in front of a tuning fork. It shows the voltage produced from the microphone as a functpcenu 32q dly 5o4w 24r:d9ztqxf*r3oion of time.


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

  The graph below was produc:mk tmn 5q04i7,sv zm+3fhkqqe by a microphone in front of a tuning fork. It shows the vv0q43,i : km 7tsz5f mn+kqhmqoltage
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 w3hdv*9x w9cvh avelength 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 = 3.0s, d+t egqp .(dh9odbr(a7 a6wnin(2.5 x − 5.0 t) where all quantities given are in MKS units, x is position, and t represents time. What is the period of the wave (in seqo(d t9. aar+w, be6png(hdd7conds)?

  11.17: A new radio station broadcasts its signal with a wavelength of 3(+pc15xxiuqd n3 1o8ph2jq rn,ye gn2.40 m. At whahq + qjnc1,np(8gi1 nx2x o5yeur23pdt frequency is this station broadcasting?