Sound originates when a disturbance sends a through the surrounding medium.
electromagnetic wave
vibration
photon
nerve impulse
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Ответ:
Ответ:
Explanation:
To find the expression in terms of time t you take into account the following equation for the angular distance traveled by an object with angular acceleration w and initial angular position θo:
α is the angular acceleration, but in this case you have a circular motion with constant angular speed, then α = 0 rad/s^2. θo is the initial angular position, the information of the question establishes that Enrique is at 3-o'clock. This position can be taken, in radian, as π/4 (for 12-o'clock = 0 rads).
The angular speed is:
You replace the values of θo, α and w in the equation ( 1 ):
Furthermore, the arc length is: