4.2.3. Write down the solutions to the following initial-boundary value problems for the wave equ...
#4.2.3 (e, f, g only) & #4.3.11 (all of it)
42.3) Write down the solutions to the follig inboundary value problems for the wave equation in the form of a Fourier series: (a) utt = uzz , u(t, 0) = u(t, π) = 0, a(0,2) 1, ut(0,x) = 0; (d) ut4u (e) ut.-uzz , u(t, 0)u1) 0, u(0,), u, (0,x; u(t, 0)=ux(t, 1)=0, a(0,2)=1, ut(0,2)=0; (g) utt = uzx , ux(t, 0)-u, (t, 1) = 0, u(0,x)-x(1-x), ut(0,2 )-0. Explain...
#6-#8
III condition tl (0,2)-Sill utO, (2e) (6) Write down the solutions to the following initial-boundary value problem for the wave equation in the form of a Fourier series: utt = uzz, u(t, 0) = u(t,r) = 0, u(0,x) = sni, ut (0,z) = 0. (7) Solve the following boundary value problem for Laplace's equation on the square u(z,0) = 0, u(z,r) = sin3 x, u(0,y) = 0, u(my) = 0. (8) Solve the following boundary value problem ,u=
III...
Solve the initial-boundary value problem. Theorem 11.3.5 (b) will simplify the computa- tion of the coefficients in the Fourier sine series. 64uz 0<x<3, t>0, u(0,t) = 0, u(3, t) = 0, t > 0, u(x,0) = (22 – 9), ut(2,0) = 0, 0<x<3. Utt
4. Consider the following initial value problem of the 1D wave equation with mixed boundary condition IC: u(z, t = 0) = g(x), ut(z, t = 0) = h(z), BC: u(0, t)0, u(l,t) 0, t>0 0 < x < 1, (a)Use the energy method to show that there is at most one solution for the initial-boundary value problem. (b)Suppose u(x,t)-X()T(t) is a seperable solution. Show that X and T satisfy for some λ E R. Find all the eigenvalues An...
1. (Review of initial/boundary value problems for ordinary differential equations) Determine u(x), a the solutions, if any, to each of the following boundary value problems. Here, u function of only one variable. u', _ 411, + 1311 = 0, 11(0) = 0 u(π) = 0 u', + 511,-14u = 0 11(0) = 5 11,(0) = 1 0<x<π 11" + 411, + 811 = 0, (0)0 11(x) = 0 0 < x < π 11(0)=0 11(2n) = 1 11" +" u-0,...
22: Solve the follwing boundary value problem Ugex - 2 = Utt: 0 < x < 1, t> 0, u(0, 1) = 0, u(1,t) = 0, 0 < x < 1, u(x,0) = x2 - x, ut(x,0) = 1, t > 0. Solve the follwing boundary value problem Uxx + e-3t = ut, 0 < x < t, t > 0, ux(0,t) = 0, unt,t) = 0, t>0, u(x,0) = 1, 0 < x <.
(4) (a) Compute the Fourier series for the function f(x) interval [-π, π]. 1-z on the (b) Compute the solution u(t, z) for the partial differential equation on the interval [0, T): 16ut = uzz with u(t, 0)-u(t, 1) 0 for t>0 (boundary conditions) (0,) 3 sin(2a) 5 sin(5x) +sin(6x). for 0 K <1 (initial conditions) (20 points) Remember to show your work. Good luck.
(4) (a) Compute the Fourier series for the function f(x) interval [-π, π]. 1-z on...
Courses LMS Integration Documentation Homework 4 EMTH 250-Advanced Math II-Spring 2019 Q1 0 solutions submitted (max: Unlimited) 12.3 Use of Fourier Series to Solve Wave PDE Find and sketch or graph (as in Fig. 288 in Sec. 12.3) the deflection u(x, t) of a vibrating string of length π, extending from x 0 to x T, and c2 T/p 4 starting with velocity zero and deflection: sin3r Make use of the following formulas. Remeber that the initial deflection is f(x),...
1. Wave equation. Consider the wave equation on the finite interval (0, L) PDE BC where Neumann boundary conditions are specified Physically, with Neumann boundary conditions, u(r, t) could represent the height of a fluid that sloshes between two walls. (a) Find the general Fourier series solution by repeating the derivation from class now considering Neumann instead of Dirichlet boundary conditions. Your final solution should be (b) Consider the following general initial conditions u(x, 0)x) IC IC Derive formulas that...
Problem 1: Solve the initial value / Dirichlet problem on the half-line and find the value u(1, 2): (8 points) Utt(t, 2) – Uzz(t, x) = x+t, (t, x) ER [0, +co), u(0,x) = = cos(2), ut(0, 2) = e", u(t,0) = 1+t.