A bugle can be thought of as an open-end pipe. If a bugle were straightened out, it would be 2.65 m long. a. If the speed of sound is 343 m/s, find the lowest frequency (i. e., the largest wavelength) that can resonate in a bugle. (64.72 Hz) b. Find the next two higher resonant frequencies in the bugle. What harmonics are they

Answer

given,

Length of pipe, L = 2.65 m

speed of sound, v = 343 m/s

Pipe is open end Pipe

a) Lowest frequency

  condition, for open end pipe

   For lowest frequency

     n = 1

           f₁ = 64.72 Hz

b) For second frequency in bugle

        n = 2

          f₂ = 129.43 Hz

   for n = 3

          f₃ = 194.16 Hz

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

the total distance traveled by the car is

30km + 49km = 79 km .