94.06: Which of the following statements about the speed of waves on a string ar5d 0go(1l1ze.x sx / xb9vfoeme true? dxoxeg s x.lbem/10z9o1 5v (f
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 *z, ;7locz bi;hq+srbH have the same tension and length. String L has mass m and string H sbz;rcl+7;*h,qioz bhas 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 endft rippr;:*sd 2k/7q r of a string sending transverse waves down the sf qrir/27ppk*;tdr: string. If the person then doubles the rate at which he vibrates the string, the speed of the waves

  11.23: A string, clamped at zs r,jf/19r tb.y)(*ldqb9xy,/ k z .wtnwiofboth ends, has its tension fixed. A wave generator vibratlrtj,*x..9fb z /oizkw1by wdtqy,f/)9r(snes 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 wi6 co04 qn3vfqbth a sound wave?

  95.04： A wave has a frequency of 50 Hz. The period of the w 10tppni06q/semy r,qgu1*d p4:p kc zh,cq4w ave is:

  04.04： A metal bar is vibrating with a frequency of 200 xqm8,nff: 6 k m fjtu,+)sxrk(Hz. The period of oscillation woxju:ff6) kqtfknx,r 8m s,m+( uld be:

  01.38: The S-waves (transverse) and P-waves (longitudinal) produxxf0q8nzw3 *dced by earthquakes travel at different speeds through the earth. S-waves travel about 4000 m/s, P-waves travel at nearly 7000 m/s, xwfq 83zdx0n* 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 f / w2u(kenn/o4yjp:tfrequency 3.0 Hz is known to move at 6.0 m/s on a string. Which one of the following figures best represents what a one-meter section of the string could look like at an instant of t2e j onwu(pf/t4:yn k/ime?

  13.24: Which one of the following statem nm eb(tuvzw;hy )y2.3ents best describes Huygens’s Principle?ue 32zvbwnmt.;yy( h )

  02.07: The diagram showsumkq k21idx l.e8(l9 e two water pulses which were originally produced at point A and are beginning to be ref k9xlm1kl8deue2q(. i lected 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 so.jyb6+pmuvx*ft9 ns*ex8y (z5.m 8i vx 2u tnbund is doubled, the wavelength:

  99.27: Assume that waves are propagating in a uniform medium.i3z8r t qz0u1u If the frequency of t tru0 iz1qz3u8he wave source
doubles then

  98.02: An observer hears a sound with frequency 400 Hz. Its wavelenujqc* , alpk54 b4m*uggth is approximat4 *k5 bplqagj,muc4*uely

  The graph below was produce by a microphone in front o.bndzixo/c3w +hsx hg34e, u7f a tuning fork. It shows the voltage produced from the microphone as a z3 /oh.4g3 xunxes, wh dbc7i+function of time.


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

  The graph below was produce by a microphone in front ou(0af tb8o3 ck3ro4jof a tuning fork. It shows the vol jo3rcftu80 4akbo3o( tage
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 wavele h4 o,h5s2tj(2hnxbbength 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) whec(: +u yg w3p.zrmr8 i72o5v0 pqwm)f7mfa vmpre all quantities given are in MKS units, x is position, and t represents time. Wha)07y2ciawq :f wp37 8gmr5zovm.+ (u mmpfprv t is the period of the wave (in seconds)?

  11.17: A new radio station broadcasts its signal with a wavelength of 3.4-g;ueefm n59o: gqig x )s+4gh0 m. At sexg 9u-gf);g en :qihm5+4gowhat frequency is this station broadcasting?