2. Consider the following problem au au at2 = 2,2 -00<< ,> 0. 1- C for...
au (x, at2 a (2,t), 0 < x < 57, to ac2 u(0,t) = 0, u(57, t) = 0, t>0, u(3,0) = sin(4x), ut(x,0) 4 sin(5x), 0 < x < 57. u(x, t) =
Question 1 - 16 Consider the following intial-boundary value problem. au au 0<x< 1, 10, at2 ax?' u(0,t) = u(11,t) = 0, 7>0, u(x,0) = 1, 34(x,0) = sin10x + 7sin50x. (show all your works). A) Find the two ordinary differential equations (ODES). B) Solve these two ODES. Show all cases 1 <0, 1 = 0, and > 0 C) Write the complete solution of this initial - boundary value problem.
Solve using the Laplace Transform the problem with border values au x2 au at2 para 0<x<1,7 > 0 sujeto a las condiciones u(0,t) = 0, u(,0) = 0, ди u(1,t) = 0 2 sin(72) + 4 sin(372) at lt=0
a) Use the d'Alembert solution to solve au au - <r< ,t> 0, at2 48,2 ux,0) = cos 3x, u(,0) = 21 b) Consider the heat equation диди 0<x<1, t > 0, at ax? with boundary conditions uz (0,t) = 0, uz(1,t) = 0, > 0, and initial conditions u(x,0) = { 0, 2.0, 0<r < 0.5, 0.5 <<1. Use the method of separation of variables to solve the equation.
Consider the below wave equation with the given conditions. au 81 Ox? u(0,1) het au 0 < x < 4, t > 0, u(4,t) = 0, 1 > 0 op u(x,0) = 0, ди at = 6x(4- x) = 384 ${1 - (-1)"} sin(npox/4), 0< x < 4. n=1 The solution to the above boundary-value problem is of the form u(x,t) = 8(n, t) sin "* n=1 Find the function g(n,1).
Problem 1. Consider the wave equation ∂ 2 ∂t2 u = ∇2u with c 2 = 1 on a rectangle 0 < x < 2, 0 < y < 1 with u = 0 on the boundary (fixed boundary condition). Find two independent eigenfunctions um1,n1 (x, y, t) and um2,n2 (x, y, t) with either m1 6= m2 or n1 6= n2 (or both) which have the same eigenvalue (frequency). Problem 1. Consider the wave equation a2 u= at2 v4...
u(x,0)= Consider the following wave equation U, = U23 -00<x<00,t> 0 (0, -0<x<-1, _x+1, -1<< <0, 1-x, 0<x<1, 1<x<00 (0, -00<x<-1, u,(x,0) = 1, -15xs1, (0, 1<x<0. Find u(1,0.5) and u(-1,0.5).
b) Consider the wave equation azu azu at2 0 < x < 2, t>0, ar2 with boundary conditions u(0,t) = 0, u(2, t) = 0, t> 0, and initial conditions u(x,0) = x(2 – x), ut(x,0) = = 0, 0 < x < 2. Use the method of separation of variables to determine the general solution of this equation. (15 marks)
5. Given the probability density f(x)= for -0<x<00, find k. 1+ 2 Jor -
Solve the heat flow problem: ot (x, t) au au (x, t) = 2 (x, t), 0 < x <1, t > 0, a x2 uz(0,t) = uz(1, t) = 0, t> 0, u(a,0) = 1 + 3 cos(TTX) – 2 cos(31x), 0<x< 1.