MY NOTES ASK YOUR TEACHER PRACTlCE ANOTHER A pipe has a length of 0.871 rn and is open at both ends. Take the speed of sound to be v = 343 rn/s. HINT (a) Calculate the two lowest harmonics of the pipe (in Hz). (Enter your answers from smallest to largest.) H2 H2 UH (b) Calculate the two lowest harmonics (in Hz) after one end of the pipe is closed. (Enter your answers from smallest to largest.) H2 H2 DD Need Help