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only f and g please 1. The motion of a vibrating string of length T, with fixed endpoints, immersed in a fluid (suc...
1. The motion of a vibrating string of length , with fixed endpoints, immersed in a fluid (such as air) can be mode...
1. The motion of a vibrating string of length , with fixed endpoints, immersed in a fluid (such as air) can be modeled by -27- 0<r<T, t>0 (PI) u(0, t) = u(, t ) t20 0 is a damping term, modelling the effect of at where c,>0. The term proportional to air resistance on the string. (a) Explain why the damping term has a minus sign. (2 points) (4 points) (b) Consider the separable solutions to (P1), ie., those of...
Use the solution of the vibrating string with fixed ends obtained with separation of variables to...
Use the solution of the vibrating string with fixed ends obtained with separation of variables to solve the following initial boundary value problem on the interval [0,1], and sketch the solution for t 0, t= 1/2 and t 1. ial diffe au u ot2 x x<1, t>0, u(x, 0) f(x)-sin zx, (x, 0) 0, u(0,)=u(1,t)= 0
2. In this question you will find the non-zero separable solutions elar,t-M(r)N(G) of the Klein Gonlon equation 01...
2. In this question you will find the non-zero separable solutions elar,t-M(r)N(G) of the Klein Gonlon equation 01 -03 subject to the boundary conditions e(0, t) = ψ(r, t) = 0. 3 points)(a) Show that the problem is equivalent to finding the possible non-zero solutions of M(1-A)M( N"(t)-AN(t) where λ is the separation constant to be determined. (2 points) (b) Let Л -1. Show that if A-: 0 then M(z)-0 is the only solution. {c) Show that if Λ =-k,...
)Consider the wave equation for a vibrating string of semi-infnite length with a fixed end at z = 0, t > 0 a(0,t) = 0, and initial conditions 0 < x < oo u(z,0) = 1-cos(nz), ut(x,0) = 0,...
)Consider the wave equation for a vibrating string of semi-infnite length with a fixed end at z = 0, t > 0 a(0,t) = 0, and initial conditions 0 < x < oo u(z,0) = 1-cos(nz), ut(x,0) = 0, Complete the table below with the values of u(0.5, t) at the specified time instants 0.5 0.5 x 0.5 0.5 0.5 2 0.5 0.75 t 0.25 u(x,t)
)Consider the wave equation for a vibrating string of semi-infnite length with a fixed...
Please only fill in the red blanks (2 points) is typed as lambda, a as alpha....
Please only fill in the red blanks
(2 points) is typed as lambda, a as alpha. The PDE yº au au ar ay is separable, so we look for solutions of the form u(x, t) = X(2)Y(y). When solving DE in X and Y use the constants a and b for X and c for Y. The PDE can be rewritten using this solution as (placing constants in the DE for Y) into X"/X = (1/(k^2))(y^5)(Y'/Y) -2 Note: Use the...
(7 points) Important Instructions: (1) is typed as lambda and a is typed as alpha. (2)...
(7 points) Important Instructions: (1) is typed as lambda and a is typed as alpha. (2) Use hyperbolic trig functions cosh(x) and sinh(x) instead of et and e- (3) Write the functions alphabetically, so that if the solutions involve cos and sin, your answer would be a cos(x) + b sin(x). (4) For polynomials use arbitrary constants in alphabetical order starting with lowest power of x, for example, ax + bx? (5) Write differential equations with leading term positive, so...
Partial Differential Equation - Wave equation : Vibrating spring Question 2 A plucked string, Figure 2 shows the initial position function f (x) for a stretched string (of length L) that is set in mot...
Partial Differential
Equation
- Wave equation : Vibrating spring
Question 2 A plucked string, Figure 2 shows the initial position function f (x) for a stretched string (of length L) that is set in motion by moving t at midpoint x =-aside the distance-bL and releasing it from rest timet- 0. f (x) bL Figure 2 (a) If the length of string is 10cm with amplitude 5cm was set initially, state the initial condition and the boundary conditions for the...
(7 points) Important Instructions: (1) is typed as lambda and a is typed as alpha. (2)...
(7 points) Important Instructions: (1) is typed as lambda and a is typed as alpha. (2) Use hyperbolic trig functions cosh(x) and sinh(x) instead of et and e-2. (3) Write the functions alphabetically, so that if the solutions involve cos and sin, your answer would be a cos(x) + b sin(x). (4) For polynomials use arbitrary constants in alphabetical order starting with lowest power of x, for example, ax + bx2. (5) Write differential equations with leading term positive, so...
(15 pts) Bessel functions and the vibration of a circular drum In polar coordinates, the Laplacia...
(15 pts) Bessel functions and the vibration of a circular drum In polar coordinates, the Laplacian is just like the Laplacian for the cylinder, but with the removed part เอ The structure of the Laplacian is what we call separable because the r and 0 terms are separate this allows us to solve certain physics problems on the disc by searching for solutions of the form f(r,0)-ar)b() The vibration of a circular drum head is described by 02t where u...
(1 point) Solve the wave equation with fixed endpoints and the given initial displacement and velocity. a2 ,0<x<L, t > 0 a(0. t) = 0, u(L, t) = 0, t > 0 Ou Ot ηπα t) + B,, sin (m Now we c...
(1 point) Solve the wave equation with fixed endpoints and the given initial displacement and velocity. a2 ,0<x<L, t > 0 a(0. t) = 0, u(L, t) = 0, t > 0 Ou Ot ηπα t) + B,, sin (m Now we can solve the PDE using the series solution u(r,t)-> An C computed many times: An example: t) ) sin (-1 ). The coefficients .An and i, are Fourier coefficients we have , cos n-1 sin(n pix/ L) dr...
1. The motion of a vibrating string of length , with fixed endpoints, immersed in a fluid (such as air) can be modeled by -27- 0<r<T, t>0 (PI) u(0, t) = u(, t ) t20 0 is a damping term, modelling the effect of at where c,>0. The term proportional to air resistance on the string. (a) Explain why the damping term has a minus sign. (2 points) (4 points) (b) Consider the separable solutions to (P1), ie., those of...
Use the solution of the vibrating string with fixed ends obtained with separation of variables to solve the following initial boundary value problem on the interval [0,1], and sketch the solution for t 0, t= 1/2 and t 1. ial diffe au u ot2 x x<1, t>0, u(x, 0) f(x)-sin zx, (x, 0) 0, u(0,)=u(1,t)= 0
2. In this question you will find the non-zero separable solutions elar,t-M(r)N(G) of the Klein Gonlon equation 01 -03 subject to the boundary conditions e(0, t) = ψ(r, t) = 0. 3 points)(a) Show that the problem is equivalent to finding the possible non-zero solutions of M(1-A)M( N"(t)-AN(t) where λ is the separation constant to be determined. (2 points) (b) Let Л -1. Show that if A-: 0 then M(z)-0 is the only solution. {c) Show that if Λ =-k,...
)Consider the wave equation for a vibrating string of semi-infnite length with a fixed end at z = 0, t > 0 a(0,t) = 0, and initial conditions 0 < x < oo u(z,0) = 1-cos(nz), ut(x,0) = 0, Complete the table below with the values of u(0.5, t) at the specified time instants 0.5 0.5 x 0.5 0.5 0.5 2 0.5 0.75 t 0.25 u(x,t)
)Consider the wave equation for a vibrating string of semi-infnite length with a fixed...
Please only fill in the red blanks
(2 points) is typed as lambda, a as alpha. The PDE yº au au ar ay is separable, so we look for solutions of the form u(x, t) = X(2)Y(y). When solving DE in X and Y use the constants a and b for X and c for Y. The PDE can be rewritten using this solution as (placing constants in the DE for Y) into X"/X = (1/(k^2))(y^5)(Y'/Y) -2 Note: Use the...
(7 points) Important Instructions: (1) is typed as lambda and a is typed as alpha. (2) Use hyperbolic trig functions cosh(x) and sinh(x) instead of et and e- (3) Write the functions alphabetically, so that if the solutions involve cos and sin, your answer would be a cos(x) + b sin(x). (4) For polynomials use arbitrary constants in alphabetical order starting with lowest power of x, for example, ax + bx? (5) Write differential equations with leading term positive, so...
Partial Differential
Equation
- Wave equation : Vibrating spring
Question 2 A plucked string, Figure 2 shows the initial position function f (x) for a stretched string (of length L) that is set in motion by moving t at midpoint x =-aside the distance-bL and releasing it from rest timet- 0. f (x) bL Figure 2 (a) If the length of string is 10cm with amplitude 5cm was set initially, state the initial condition and the boundary conditions for the...
(7 points) Important Instructions: (1) is typed as lambda and a is typed as alpha. (2) Use hyperbolic trig functions cosh(x) and sinh(x) instead of et and e-2. (3) Write the functions alphabetically, so that if the solutions involve cos and sin, your answer would be a cos(x) + b sin(x). (4) For polynomials use arbitrary constants in alphabetical order starting with lowest power of x, for example, ax + bx2. (5) Write differential equations with leading term positive, so...
(15 pts) Bessel functions and the vibration of a circular drum In polar coordinates, the Laplacian is just like the Laplacian for the cylinder, but with the removed part เอ The structure of the Laplacian is what we call separable because the r and 0 terms are separate this allows us to solve certain physics problems on the disc by searching for solutions of the form f(r,0)-ar)b() The vibration of a circular drum head is described by 02t where u...
(1 point) Solve the wave equation with fixed endpoints and the given initial displacement and velocity. a2 ,0<x<L, t > 0 a(0. t) = 0, u(L, t) = 0, t > 0 Ou Ot ηπα t) + B,, sin (m Now we can solve the PDE using the series solution u(r,t)-> An C computed many times: An example: t) ) sin (-1 ). The coefficients .An and i, are Fourier coefficients we have , cos n-1 sin(n pix/ L) dr...
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