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Juliette [100K]
3 years ago
14

What is the period of a 220 hz sound wave?

Physics
2 answers:
sergiy2304 [10]3 years ago
8 0
T=1/f 
<span>T being period. f being frequency. </span>
<span>1/220=0.0045 ms </span>
<span>1/6.5=0.1538 mHz 
(example)
hope it helps


</span>
Leokris [45]3 years ago
7 0
We have to calculate the period when we know the frequency of a sound wave. Period and frequency are related quantities. They are reciprocal of each other.
T = 1/f, where T is the period ( in seconds ) and f is the frequency ( in Hz ).
T = 1/220 Hz;
Answer: T = 0.0045 s.
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The answer:
the full question is as follow:
 <span>A Texas rancher wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as A, B, and C in Figure below , where A = 4.90 km and θC = 15°. He then correctly calculates the length and orientation of the fourth side D. What is the magnitude and direction of vector D? 

As shown in the figure, 
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