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30.11.2019 •
Physics
When sound waves strike the eardrum, this membrane vibrates with the same frequency as the sound. the highest pitch that typical humans can hear has a period of 50.0 μs. what are the frequency and angular frequency of the vibrating eardrum for this sound?
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Ответ:
Explanation:
Time period, T = 50 μs = 50 x 10^-6 s
Frequency is defined as the number of oscillations or vibrations completed in one second.
The reciprocal of time period is called frequency.
f = 1 / T
f = 1 / (50 x 10^-6)
f = 20,000 Hz
Angular frequency, ω = 2 x π x f
ω = 2 x 3.14 x 20,000
ω = 125600 rad/s
Ответ:
Frequency:
The cycles or periods cover by an entity is called the frequency,f.
Mathematical equation: f=1/T.
Unit: Hertz,Hz.
Angular frequency:
Basically, to determine the movement of an object which is moving on a circular path, the angular velocity is the cycles or the distance covered between any points on the circular path is called as the angular frequency,ω.
Formula: ω = 2 x π x f.
Units: rad(or degree)/sec.
Explanation:
We have the following data provided to us, as following:
Time period, T = 50 μs,T=50 x 10^-6 s,As, we have f = 1 / Tf = 1 / (50 x 10^-6)f = 20,000 Hz,f=20 kHz.As, we have the following equation to put all the values then;ω = 2 x π x f,ω = 2 x 3.14 x 20,000ω = 125600 rad/s.⇒ AnswerОтвет: