This works best as a team effort one person raises and lowers the water can. * one person holds and strikes the tuning fock, listening for resonance. *one person watches the water level, noting where the resonance occurs the water can so the water level is 5-10 cm above the predicted l 3 | strike the tuning fork with a rubber mallet. 4 1 hold the vibrating fork above the top of the pipe the tines should vibrate up-and-down, not side-to-side. 51 lower the water can 6 i listen carefully as the water level drops. this is the resonance. note where it occurs. 81 to verify the resonance position, try again with the water level rising. you can experiment with holding the water level steady at the resonance position, but the reso- nance is much easier to detect when the water level is changing. 9 i repeat for the third and fifth harmonics, using the same tuning fork. repeat the entire procedure for the other two tuning forks. 11 i measure the air temperature again after completing all trials. 10 analysis for each trial, calculate the experimental ◆ wavelength, from lee, and n; ◆ wave speed, from equation (13.3). calculate the average experimental wave speed. from your initial and final temperature readings, calculate ◆ ◆ the average air temperature ◆ the theoretical speed of sound in the air from equation (132) calculate the error in your average experimental wave speed. resonance in a closed pipe questions 1 | estimate the uncertainty in your measurements of l: are they accurate to the nearest mil- limeter? nearest centimeter? or.? explain.