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This applet models the behavior of a resonant system. The graph plots the solution of a second-order, constant coefficient differential equation in real time.

You can alter the different parameters in order to observe the different characteristic responses: transitory, steady state, resonance…

**Click **on 'settings' to show the parameters, then **drag **the appropriate sliders to change their values.

- To observe the solutions of a second-order differential equation.
- To describe what transient and a steady state solutions are
- To describe the resonance phenomenon and phase differences.