11.4 - Summary
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Practice Questions
Test your understanding with targeted questions
What is the standard form of the one-dimensional wave equation?
💡 Hint: It involves second derivatives with respect to both time and space.
What variables are represented in the wave equation?
💡 Hint: Look for the terms that involve movement in time and space.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the wave equation describe?
💡 Hint: Think about the physical processes involved in different media.
True or False: D'Alembert's solution allows for wave shapes to change over time.
💡 Hint: Recall how traveling waves behave.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A string fixed at both ends vibrates according to the equation \( \frac{\partial^2 u}{\partial t^2} = 16 \frac{\partial^2 u}{\partial x^2} \). If the initial conditions are \( u(x,0) = 0 \) and \( \frac{\partial u}{\partial t}(x,0) = 10 \sin(\frac{\pi x}{L}) \), find the solution for \( u(x,t) \).
💡 Hint: Apply separation of variables and use Fourier series expansions.
Consider a wave traveling in a string modeled by the equation \( \frac{\partial^2 u}{\partial t^2} = 25 \frac{\partial^2 u}{\partial x^2} \). If the free end at x = L has an amplitude of 5 cm, derive the expressions for displacement and motion at x over time.
💡 Hint: Identify the wave parameters and relate them back to the wave equation.
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