A sound wave has a frequency of 192Hz and travels the length of a football field, 91.4m in 0.271s.
A) what is the speed of the wave
B) what is the wavelength of the wave
C) What is the period of the wave
D) If the frequency was changed to 442Hz, what would be the new wavelength and period
2007-02-24 11:02:18 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
a=24.77 m/s
b=.12m
c=52.032
d= .056m for new wavelength, and 119.782 for new period
2007-02-24 11:20:57 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Sound at sea level travels approximately 1000 ft. per second. The wave length is one divided by the frequency in hz per second.
2007-02-24 19:22:43 · answer #2 · answered by JOHNNIE B 7 · 0⤊ 0⤋
fL=v where f is frequency and L is lambda the wavelength and v is velocity
v=91.4/.271s=337.27 m/s
b L=v/f=337.27/192=1.76 m
c T=1/f= 5.2 E-3 s
the new frequency is 2.3 times more frequent so the new L is 1.76/2.3=.77 m
T=1/f=2.2 E-3
2007-02-24 19:25:37 · answer #3 · answered by Rob M 4 · 1⤊ 0⤋