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Problem 1 Problem 1 (i) Show that the wave equation 1 1 22 22 22 22...
Exercise 3. (12p) (Lorentz boosts) The Maxwell equations (7) are invariant under Lorentz transformations. This implies...
Exercise 3. (12p) (Lorentz boosts) The Maxwell equations (7) are invariant under Lorentz transformations. This implies that given a solution of the Maxwell equa- tions, we obtain another solution by performing a Lorentz transformation to the solution. A particular Lorentz transformation is a Lorentz boost with velocity v in - direction and acts on the electric and magnetic field strength as given in appendix B. (1) Tong) Now consider the electric and magnetic field due to a line along the...
4) (6 marks) Show that the equation 1 32 va V = 0 c2 at2 is...
4) (6 marks) Show that the equation 1 32 va V = 0 c2 at2 is invariant under a Lorentz transformation but not under a Galilean transfor- mation. In other words, check whether or not the form of the equation changes when you transform the derivatives. (This is the wave equation that describes the propagation of light waves in free space.)
Chapter 16, Problem 009 A sinusoidal wave moving along a string is shown twice in the...
Chapter 16, Problem 009 A sinusoidal wave moving along a string is shown twice in the figure, as crest A travels in the positive direction of an x axis by distance d" 6.0 cm in 4,2 ms. The tick marks along the axis are separated by 14 cm; height H 6.20 mm. If the wave equation is of the form y(x, t) Ym sin(kx wt), what are (a) yme (b) k, (c) , and (d) the correct choice of sign...
Problem 2. Solve the following ID wave equation: Ott(x,t) = 0xx(x, t) with the boundary conditions...
Problem 2. Solve the following ID wave equation: Ott(x,t) = 0xx(x, t) with the boundary conditions 0(0,t) = 0x(1,t) = 0, where 0(x, t) refers to the twist angle of a uniform rod of unit length. Problem 3. Show that the solution of the partial differential equation (Laplace equation),
1. Spherical waves. Starting with the wave equation VE in spherical polar ,,2 2.1 in spherical po...
1. Spherical waves. Starting with the wave equation VE in spherical polar ,,2 2.1 in spherical polar coordinates, and letting E E(r,t) only, show that where f and g are arbitrary functions. (Hint: start by writing E- F/r and substitute into the wave equation to get a differential equation in the function F(r.t).) What does each term represent physically, and what is the significance of the factor /r? (Hint: think Poynting vector.)
1. Spherical waves. Starting with the wave equation...
electromegnatic 22.2 EXERCISES 2-1 Show that 22-8) and (22-9) can also be -6 how that, in a li from (22-4) and (22-5) rather where P-0 and J,- Maxwell's equations first. be found completely fr...
electromegnatic 22.2
EXERCISES 2-1 Show that 22-8) and (22-9) can also be -6 how that, in a li from (22-4) and (22-5) rather where P-0 and J,- Maxwell's equations first. be found completely fro and n by starting (22-4 an by going back to equation frst. t, if the free charge and current is, φ-, const. (zero is 1 equations determine N position and time, 227 Consider a re distributions and the polarization and ma gnetiza- tion are all given...
all parts, please For this problem, we'll solve the 3D wave equation in a box. The...
all parts, please
For this problem, we'll solve the 3D wave equation in a box. The Laplacian in 3 dimensions is a2 vu= a2 a2 ou + ay? U= and the wave equation is 22 a2 at24 = 1 (a) (3 Points) Use separation of variables with ur,y,z,t) = S(x, y, z)T(t) to get a spatial PDE and a temporal ODE for this problem, call the separation constant A. Show all your work! (b) (3 Points) The spatial equation should...
Problem 1. (25 points) Consider the following differential equation. 36 (a) Using the change of variable, 2 VT, write the differential equation in the form of Bessel's equation, 22y" zy(22- v...
Problem 1. (25 points) Consider the following differential equation. 36 (a) Using the change of variable, 2 VT, write the differential equation in the form of Bessel's equation, 22y" zy(22- v2)y 0. (b) Find the general solution of the differential equation (y(). (You do not need to find the value:s of Gamma functions.) (c) Find the term multiplying ? in the solution. (You do not need to find the values of Gamma functions.)
Problem 1. (25 points) Consider the following...
just question 3. question 1 only helps for answer in question 3 A string is stretched...
just question 3. question 1 only helps for answer in question 3
A string is stretched between two posts with the equilibrium position of the string lying along the x-axis. After the string is plucked, let z = s(x, t) denote the vertical displacement of the string at position and time t. string in equilibrium plucked string 1. Give a short interpretation, in words, of each of the following quantities: i) The function (2,0). ii) The partial derivative iii) The...
Problem 1. Consider the wave equation ∂ 2 ∂t2 u = ∇2u with c 2 =...
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...
Exercise 3. (12p) (Lorentz boosts) The Maxwell equations (7) are invariant under Lorentz transformations. This implies that given a solution of the Maxwell equa- tions, we obtain another solution by performing a Lorentz transformation to the solution. A particular Lorentz transformation is a Lorentz boost with velocity v in - direction and acts on the electric and magnetic field strength as given in appendix B. (1) Tong) Now consider the electric and magnetic field due to a line along the...
4) (6 marks) Show that the equation 1 32 va V = 0 c2 at2 is invariant under a Lorentz transformation but not under a Galilean transfor- mation. In other words, check whether or not the form of the equation changes when you transform the derivatives. (This is the wave equation that describes the propagation of light waves in free space.)
Chapter 16, Problem 009 A sinusoidal wave moving along a string is shown twice in the figure, as crest A travels in the positive direction of an x axis by distance d" 6.0 cm in 4,2 ms. The tick marks along the axis are separated by 14 cm; height H 6.20 mm. If the wave equation is of the form y(x, t) Ym sin(kx wt), what are (a) yme (b) k, (c) , and (d) the correct choice of sign...
Problem 2. Solve the following ID wave equation: Ott(x,t) = 0xx(x, t) with the boundary conditions 0(0,t) = 0x(1,t) = 0, where 0(x, t) refers to the twist angle of a uniform rod of unit length. Problem 3. Show that the solution of the partial differential equation (Laplace equation),
1. Spherical waves. Starting with the wave equation VE in spherical polar ,,2 2.1 in spherical polar coordinates, and letting E E(r,t) only, show that where f and g are arbitrary functions. (Hint: start by writing E- F/r and substitute into the wave equation to get a differential equation in the function F(r.t).) What does each term represent physically, and what is the significance of the factor /r? (Hint: think Poynting vector.)
1. Spherical waves. Starting with the wave equation...
electromegnatic 22.2
EXERCISES 2-1 Show that 22-8) and (22-9) can also be -6 how that, in a li from (22-4) and (22-5) rather where P-0 and J,- Maxwell's equations first. be found completely fro and n by starting (22-4 an by going back to equation frst. t, if the free charge and current is, φ-, const. (zero is 1 equations determine N position and time, 227 Consider a re distributions and the polarization and ma gnetiza- tion are all given...
all parts, please
For this problem, we'll solve the 3D wave equation in a box. The Laplacian in 3 dimensions is a2 vu= a2 a2 ou + ay? U= and the wave equation is 22 a2 at24 = 1 (a) (3 Points) Use separation of variables with ur,y,z,t) = S(x, y, z)T(t) to get a spatial PDE and a temporal ODE for this problem, call the separation constant A. Show all your work! (b) (3 Points) The spatial equation should...
Problem 1. (25 points) Consider the following differential equation. 36 (a) Using the change of variable, 2 VT, write the differential equation in the form of Bessel's equation, 22y" zy(22- v2)y 0. (b) Find the general solution of the differential equation (y(). (You do not need to find the value:s of Gamma functions.) (c) Find the term multiplying ? in the solution. (You do not need to find the values of Gamma functions.)
Problem 1. (25 points) Consider the following...
just question 3. question 1 only helps for answer in question 3
A string is stretched between two posts with the equilibrium position of the string lying along the x-axis. After the string is plucked, let z = s(x, t) denote the vertical displacement of the string at position and time t. string in equilibrium plucked string 1. Give a short interpretation, in words, of each of the following quantities: i) The function (2,0). ii) The partial derivative iii) The...
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...
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