What is the difference between steady and unsteady flow

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1. What are the four basic aerodynamic forces?

2. What is the continuity equation and its basic physical concept?

3. What is incompressible flow?

4. What is the difference between steady and unsteady flow?

5. What is Bernoulli's equation and what assumptions are required for it to be valid?

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What is the difference between steady and unsteady flow : 1. what are the four basic aerodynamic forces?2. what is the continuity equation and its basic physical concept?3. what

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