Use the following information to answer the next question Questions Closed-Pipe Resonance Use the following information to answer the next question A tuning fork held over a closed pipe produces resonance for particular A Standing Wave Pattern in a Spring 20. If two waves are said to be out of phase, which of the following applies? lengths (L). agram is not to scale.) Tuning fork B The position of the crests from one wave must coincide with the Tuning fork A position of the nodal points from the other wave. O The position of the crests from one wave must coincide with the Sliding closed-pipe position of the crests from the other wave. 19. Refer to the diagram A Standing Wave Pattern in a Spring to answer this question. The position of the crests from one wave must be continually The standing wave in this spring has a frequency of 1.24 Hz. If the spring changing relative to the position of the crests from the other wave. is stretched to a length of 3.65 m, the speed of the wave in the spring is O The position of the crests from one wave must coincide with the O2.94 m/s position of the troughs from the other wave. Prev Next 23. Refer to the diagram Closed-Pipe Resonance to answer this question. O 1.13 m/s A tuning fork is held over the end of a the end of a variable-length closed pipe of length (L) 0.56 m. The length of the pipe is then gradually increased. As 2.26 m/s Questions the pipe gets longer, the sound of the tuning fork gradually gets louder, then softer again. If the tuning fork has a frequency of 440 Hz and the 1.47 m/s speed of sound in air is 334 m/s, what is the length of the tube at the 22. A clarinet is essentially a hollow tube with holes drilled in it to produce an second resonant point? open-pipe resonator. To create the note called middle C, the clarinetist covers the holes along the body of the clarinet to produce a tube that is 64.1 cm long. If the speed of sound in air is 328 m/s, then the frequency 0.95 m Questions of this note is_ Hz. (Record your three-digit answer.) O0.57 m 21. A wave in a spring, stretched to a length of 8.28 m, travels at a speed of Your answer: DODO 01.1 m 3.88 m/s. How many nodes are located along the length of the spring if the frequency of the standing wave is 1.64 Hz? Prev Next O0.76 m 0 8 Questions 25. A police car that has a siren with a frequency of 525 Hz is approaching 07 you at a speed of 35.0 m/s with its siren on. If the speed of sound in the 24. A car is moving away from you at a speed of 116 km/h. If the speed of air is 342 m/s, what is the frequency at which you would hear the siren? sound is 336 m/s, what is the true frequency of the car's horn if the frequency you hear for the horn is 342 Hz? O 10 0 556 Hz