94.06: Which of the following statements about the speed of waves on s u7vx/)ozx5z a string are tru/5ox zux )v7zse?
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 length. Siw+k/ f*oi*uttring L has mass m and string H has mass 4m. If the speed waves+i /t oiku**wf in string L is v, the speed of waves in string H is

  07.44: A person vibrates the end of a string sending trarqd-qp )us1a;dm s5y3 wf9l*r nsverse waves down the string. If the person then doubles the rate at which sfw-dsya5dlr9) ;*1 p3qumrqhe vibrates the string, the speed of the waves

  11.23: A string, clamped at both ends, has its tension fixed. A wave generator v4,n57tb cgy b5doy mrr0z0nou3;g z7nz 8 e-uoibrates the strz7-bo t 5n73euyy, 5oc gnb0m8unr go04; zzrding 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 associat( chp31:j xql:mpuzn, ed with a sound wave?

  95.04： A wave has a frequency of 50 Hz. The period of the wk p1yyg(e* yl4ave is:

  04.04： A metal bar is vibrating witjj n2a97xvz bov( bx5wl1(kqybpn :3;h a frequency of 200 Hz. The period of oscillation w:5(lx( zjqn9vb;y kb bj713nxpa v2woould be:

  01.38: The S-waves (transverse) andm,ax,8oy 0o ;cgvix; j P-waves (longitudinal) produced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 m/s, P-waves travel at neoxj gxcoi,;my0a,; 8v arly 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 8ju30.cway56z4bvfk ydl 6t)l *bllz.0 m/s on a string. Which one of the followin *6y blkl v z falulcw56jb48tdy30)z.g figures best represents what a one-meter section of the string could look like at an instant of time?

  13.24: Which one of the fo 9puptp9 1r.kug8qt;a6 wmny .llowing statements best describes Huygens’s Principle?a8kw.pq1 m6 uty.rp up9n ;9gt

  02.07: The diagram shows two jn/r01uu aq b2q,zh+bwater 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 /ujqn,zb 2rq 0u1a+b hfor the reflected waves?

  96.03: If the frequency of sound is doubled, j0f wmt5 (u*jathe wavelength:

  99.27: Assume that waves are propagating in a uniform medium. If the frequency a60iu1 darij 3of the wava iid1a r03u6je source
doubles then

  98.02: An observer hears a sound with frequency 400 Hz. Its wavelength is avcgridglj3 3mt9d i. 7d:p,d jyp22+bpproxidp 2tp7m93,gdld3jji gy+b.2rvci :dmately

  The graph below was produce byw3nobi;bh p qbz +9epf,.4, ur a microphone in front of a tuning fork. It shows the voltagihb+,, 9b zpq;e4rub3wnopf .e produced 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 tuning for5z7zp.fj5rcir8dqb 1j1u r, gk. It shows the v dbjj7g1,5p5curfi8z. zq 1rroltage
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 wavelength of z+dij/ f5 kzf0yb*v:c$1.2 × 10^{−4}\:m$ 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 =pe4r6b768msr d nhl5l 3.0sin(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 mh pllr4ersdn7b5 668 seconds)?

  11.17: A new radio station broadcasts its 4m6plo e;riapm3 j4 t6signal with a wavelength of 3.40 m. At what ma 364opitr ep4j6;ml frequency is this station broadcasting?