The formant frequencies of speech are also influenced by the density of the propagating medium. The human vocal tract is approximately 17 cm long. What is the first and second formants of this voice

486.76 Hz ; 1460.29 Hz

Explanation:

Given that :

Length of vocal tract = 17cm

Velocity of sound in air = 331 m/s

The first and second formants of the voice ;

First formants :

F1 = V / 4L

V in m/s ; L in m

F1 = (331 m/s) / (4 * 17/100 m)

F1 = (331 m/s) / 0.68 m)

F1 = 486.76470 Hz

F1 = 486.76 Hz

Second Formants :

F2 = 3V / 4L

V in m/s ; L in m

F2 = (3 * 331 m/s) / (4 * 17/100 m)

F2 = (3 * 331 m/s) / 0.68 m)

F2 = 993 m/s / 0.68 m

F2 = 1460.2941 Hz

F2 = 1460.29 Hz

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explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.