

Check your understanding Given (x, t = 0) = (1X1(x) + c2X2(x) where ÑX1 = EjX1...
2) For the given equations: V(z) = { é o se} V(,0) = V $(x) + V1() + vee(r) a) Write the expression for 4A (x,t). b) What is the expectation value for (E) ? Write the expression in E.. c) Write the expression for W.(x,t) at E2 for t>t, and what is the probabilities at t2 > ti d) Write the another expression for WB(x, 0) with the same value of (E). e) Write the another expression for c(x,0)...
Given the velocity field u = xte1 + yte2 (where e1 and e2 are
unit vectors in the x and y direction, respectively) determine how
the density of the fluid varies with time. Assume the density is
independent of spatial position and that ρ = ρo at t = 0
I know that I need to substitute u into the equation of
continuity which is
ρo(∂s/∂t) + ∇*(ρo*û ) = 0 and solve for s but not
really sure how...
Check the existence of the Laplace transform for the given function and hence show that - cos 20 1s² + 4 L = In t s2 where L{f(t)} is represent the Laplace transform of f(t). [Hint: 2 cos A cos B = COSIA+B) + cos(A - B) sin(A + B) + sin(A - B) = sinA cosB, sin(A + B) – sin(A - ?) = os AsmB] [2+ Find the Fourier Sine series of [8 f(x) = e-*,0<x<. Using the...
Show that the retarded potentials given by 0(x, t) = 176f d (,4)ret A(x, t) = | APAB (X,1"). where we define R= x - x' and R= |x - x' satisfy Lorenz's condition: 1 ag V: A+ 2 ət = 0 Carefully explain your calculations.
3.9. A particle of mass m is confined in the potential well 0 0<x < L oo elsewhere (a) At time t 0, the wave function for the particle is the one given in Problem 3.3. Calculate the probability that a measurement of the energy yields the value En, one of the allowed energies for a particle in the box. What are the numerical values for the probabilities of obtaining the ground-state energy E1 and the first-excited-state energy E2? Note:...
2. Phasors At a given position x-0 two time-dependent electric fields E,t) and E,(t) interfere: E,(t)-2"cos(ot) and E2(1) = 3~cos(ot-π) Using the method of phasors, a) Evaluate the resultant field EE()+E(t) at that position. b) Using the complex plane, draw the three phasors at two arbitrarily different times. 4
2. Phasors At a given position x-0 two time-dependent electric fields E,t) and E,(t) interfere: E,(t)-2"cos(ot) and E2(1) = 3~cos(ot-π) Using the method of phasors, a) Evaluate the resultant field EE()+E(t)...
= 0 over the domains 0<x<1 and t>0, where x is space and t is time at ax ди (1,1) = 0 ax Dirichlet and Neumann BCs are u(0, t)=80; Find the solution of the PDE that satisfies the given IC and BCs a. IC: u(x,0) 25sin (nx)
CHECK YOUR UNDERSTANDING GRAPHICAL ANALYSIS EXERCISES Suppose that you've elevated the en was the subject of the Check Your U Leated the end of the air track from which you released the glider whose motion Check Your Understanding exercise in Graphing Experimental Data. You n as a function of time and obtain the following set of data. release the glider and measure its position as a function of time and obtain 0.00 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40...
2. Consider the following 1-D wave equation with initial condition u (x, 0)- F (x) where F(x) is a given function. a) Show that u (x, t)-F (x - t) is a solution to the given PDE. b) If the function F is given as 1; x< 10 x > 10 u(x, 0) = F(x) = use part (a) to write the solution u(x, t) c) Sketch u(x,0) and u(x,1) on the same u-versus-x graph d) Explain in your own...
4. Given ä(t) + 250, 4(0) + 1) = 40, () where U (0) is the unit step input and A and az are constants. Consider the overdamped case where t > 1. The roots of the characteristic equation are real and distinct. Let's say the roots are s=-- and s, =-- where t, and T, are time constants. The homogeneous solution is xy(t) = " + C,e" solution is x,0) = KA where K is a constant. Therefore, X(t)...