Solution of the D 7 (reference 2) Option 19 Dievskaya V
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D7 ACTIVITY 2 - FORCED VIBRATIONS: Mechanical systems in Schemes 1-30 provided with weightless viscous damper, which is set at a point in parallel to the axis of the elastic element, and creates a resistance force proportional to the velocity of point B: R = -bvB, where b = 20 N * s / m - coefficient of resistance.
In addition, the system begins to operate the driving force F = F0sinpt, where F0 - 60 H, p = 25 s-1 - the amplitude and frequency of the driving force. The driving force is applied at the point B and acts parallel to the axis of the elastic element. (If the point coincides with the point A in the diagrams specified in = A)
It is required to determine the amplitude of the purely forced vibrations of the system.
Solution 2 job tasks D7 scheme №19
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- Updated on the site 27.05.2016
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Task completed in word format (handwritten or typed solution in Word), packed to the archive zip (open on any PC).
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Solution of the D 7 (reference 2) Option 19 Dievskaya V
Cumulative discount
| 250 $ | the discount is 15% |
| 50 $ | the discount is 10% |
| 30 $ | the discount is 7% |
| 15 $ | the discount is 5% |
| 5 $ | the discount is 3% |
| 3 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Amount of purchases from the seller: $
Your discount: %
Cumulative discount
| 250 $ | the discount is 15% |
| 50 $ | the discount is 10% |
| 30 $ | the discount is 7% |
| 15 $ | the discount is 5% |
| 5 $ | the discount is 3% |
| 3 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Amount of purchases from the seller: $
Your discount: %
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