# Peripheral rotation speed. Distribution period and frequency - knowledge hypermarket.

### Peripheral rotation speed. Distribution period and frequency - knowledge hypermarket.

\ u003e \ u003e Physics: Frequency and Frequency

The uniform motion in the circle is characterized by the circulation period and frequency.

Treatment period - This is the time for a single revolution.

For example, if n = 2 turns of a moving body along a circle for a time t = 4 seconds, it is easy to see that one turn lasted for 2 seconds. This is the period of the cycle. It is represented by the letter T and is determined by the formula.

So to find the cycle, you need to divide the number of rotations by the number of rotations.

Another characteristic of a uniform circumference is its recurrence frequency.

The frequency of treatment is the number of revolutions per second. For example, if the body completes n = 10 turns for t = 2 seconds, it is easy to see that it has 5 times to turn within 1 second. This number represents the recurrence frequency. It is represented by Greek letters. V (Read: New) is determined by the following formula:

So in order to find the frequency of the circulation, you need to divide the speed to the time it occurred.

SI takes the frequency of one rotation of the body every 1 second per unit frequency of the cycle. This unit is expressed as 1 / s or s -1 (read: 2nd - 1st order). Previously, this unit was called "turnover rate per second", but now the name is considered obsolete.

Comparing Eqs. (6.1) and (6.2), we can see that cycle and frequency are opposite to each other. therefore

Eqs. (6.1) and (6.3) allow to find the orbital period T if the number of rotations n and the cycle time t or the cycle frequency V are known. However, none of these quantities can be found. Instead, knowing the body's speed is enough. V and the radius of the moving circle.

To derive a new formula, the orbital period is the time for the body to make one revolution, that is, the time to travel along the same path as the circumference (I am okr = 2 Fr where? F≈3.14 is the "pi" number known in the mathematics process. But we know that time is found by dividing the traveled distance by the moving speed in a uniform motion,

So in order to find the body's rotation cycle, it is necessary to divide the length of the moving circle by the velocity of the movement.

??? 1. What is the shelf life? 2. How do you know the time and the number of revolutions and how do you find the cycle? 3. What is the frequency of treatment? 4. How is the frequency unit specified? 5. How do I know the number of rotations and the number of rotations? 6. How is the circulation period related to frequency? 7. How do you know the radius of the circle and the speed of movement of the body and the duration of the rotation?

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