Wave equation:
(d^2u/dt^2) = 9(d^2u/dx^2)
with u(0,t) = u(π,t) = 0 u(x,0) = 3sin4x + 8sin5x, ∂u/dt(x,0) = x, 0 < x < π/2 , π − x, π/2 < x < π.
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Wave equation: (d^2u/dt^2) = 9(d^2u/dx^2) with u(0,t) = u(π,t) = 0 u(x,0) = 3sin4x + 8sin5x,...
Solve the IBVP wave equation. d^2/dt^2=16d^2/dx^2 0<x<pi u(x,0)=sinx du(x,0)/dt=0 u(0,t)=u(pi,t) =0 t>0
Solve the BVP for the wave equation (∂^2u)/(∂t^2)(x,t)=(∂^2u)/(∂x^2)(x,t), 0<x<5pi u(0,t)=0, u(5π,t)=0, t>0, u(x,0)=sin(2x), ut(x,0)=4sin(5x), 0<x<5pi. u(x,t)=
For 0 x π , 0S9, π , and 120 , solve the 2-D wave equation subject to the following conditions. u(0,y,t)-0, u(T.yt):0, u(x,0,) u(x,π, t) 0, 0 Boundary condition: C11 1 u(x),0)-sin(x)sin(2y) + sin(2x)sin(4y), 0 at It=0 Initial condition:
For 0 x π , 0S9, π , and 120 , solve the 2-D wave equation subject to the following conditions. u(0,y,t)-0, u(T.yt):0, u(x,0,) u(x,π, t) 0, 0 Boundary condition: C11 1 u(x),0)-sin(x)sin(2y) + sin(2x)sin(4y), 0 at It=0 Initial condition:
Consider the second order partial differential equation du/dt=
d^2u/dx^2 +2du/dx+u over the domain x in [0,l) and t>=0. It is
given that u(0,t)=u(l,t)=0. Use the method of separation of
variables to prove that the general solution with the given
boundary condition is u(x,t)= infinity series n=1
bnsin(npix/l)exp(-x-((npi/l)^2)t) where bn is
a constant for every n N
Hint u(x,t)=X(x)T(t)
tnsit te Seind ond partial difertinl cuatan +2n St the dowain e To,e) an Use metod o Separet ion Vaiades to rore...
for the following parabolic PDEs heat equation for one variable d2/dx² u(x,t) = d/dt u(x,t) . Where u(0,t)=0 , u(1,t)=0 , u(x,0)=sinπx . Complete using crank nicolson method . With h=0.2 , k=0.02
Solve the wave equation
a2
∂2u
∂x2
=
∂2u
∂t2
, 0 < x < L, t > 0
(see (1) in Section 12.4) subject to the given conditions.
u(0, t) = 0, u(L, t) = 0
u(x, 0) =
4hx
L
,
0
<
x
<
L
2
4h
1 −
x
L
,
L
2
≤
x
<
L
,
∂u
∂t
t = 0
= 0
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slove the system eqution: d^3y(t)/dt^3 - 2 d^2y(t)/dt^2 - 5 dy(t)/dt +6 y(t) = 2 d^2u(t)/dt^2 +du(t)/dt +u(t) A) compute the transfer function Y(s)/U(s)? B)Find inverse Laplace for y(t) and x(t)? C) find the final value of the system? D)find the initial value of the system? Please solve clearly with steps.
7.17 (a) Solve the equation u, 2u, in the domain 0< x<T, t>0 under the initial boundary value conditions u(0,t)= u(r, t) 0, u(x, 0) = f(x) = x(x2 -n2). (b) Use the maximum principle to prove that the solution in (a) is a classical solution. 7.18 Prove that the formulas (7.72)-(7.75) describe solutions of (7.70)-(7.71) that are
7.17 (a) Solve the equation u, 2u, in the domain 0
please answer compleltly
2. Find the eigenfunctions and eigenvalues for the differential equation d^2u(x)/dr^2 = -k^2 u(x) in the interval 0 < = x < = a, assuming k is a real number, for the following sets of boundary conditions: (a) bu(0)+cdu/dt|x=0 =0 and bu(a)+cdu/dx|x=a =0 (b) u(0)+a du/dx|x=0 =0 and u(a)-adu/dx|x=a =0 You need not normalize the eigenfunctions. For (b), find the equation which determines the eigenvalues and verify that there is an infinite set of eigenfunctions and eigenvalues;...
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...