Answer: 176400
Step-by-step explanation:
Answer:
r is around 14 in
Step-by-step explanation:
615.8* pi*r^2
hope this helps! :)
Answer:
d
Step-by-step explanation:
Answer:
a) see attached
b) period = 1/f ≈ 3.822 ms
Step-by-step explanation:
Apparently the pressure formula is ...
![p(t)=0.004\sin{\left(2\pi ft+\dfrac{\pi}{7}\right)}](https://tex.z-dn.net/?f=p%28t%29%3D0.004%5Csin%7B%5Cleft%282%5Cpi%20ft%2B%5Cdfrac%7B%5Cpi%7D%7B7%7D%5Cright%29%7D)
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a) A graph of this for f=261.63 is shown in the attachment.
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b) The period is the time T required to change the sine function argument by 2π:
2πfT = 2π
T = 1/f . . . . . . divide by 2πf
The period is the reciprocal of the frequency.
The period of the tone is 1/(261.63 Hz) ≈ 3.822·10^-3 s