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ferred to as a linear quadrupole. (a) Find the exact expression for the potential at a...
A linear spring-mass system (without friction) satisfies m(d^2x/dt^2) = -kx, Derive that m/2 (dx/dt)^2 + k/2...
A linear spring-mass system (without friction) satisfies m(d^2x/dt^2) = -kx, Derive that m/2 (dx/dt)^2 + k/2 x^2 = constant = E. Consider the initial value problem such that at t = 0, = x_0 and dx/dt = v_0. Evaluate E. Using the expression for conservation of energy, evaluate the maximum displacement of the mass from its equilibrium position. Compare this to the result obtained from the exact explicit solution.
Quantum Mechanics II Consider the linear potential V = al.]. Use a Gaussian = exp(-Bx?) as...
Quantum Mechanics II
Consider the linear potential V = al.]. Use a Gaussian = exp(-Bx?) as the trial wave function, and calculate the ground state energy with the variational principle. De- termine the parameter B which minimizes the energy, and find Emin Express Emin = f x (hop/2m)1/3, and give the numerical value of the factor f. This is the upper bound of the true ground state energy, E Compare Emin with the exact result, E. = 1.019 (1?o?/2m)/3, and...
1 1. Find the exact sum of the following infinite series as indicated below: -1 1...
1 1. Find the exact sum of the following infinite series as indicated below: -1 1 1 1 1 + n(-4) 2(16) 3(64) 4(256) a. Let f(x) = 2n=1 (-1) x". I n a b. Find the power series for the derivative f'(x), and observe that it is a geometric series. Find its first term and common ratio. c. Use the formula 1-r to find an algebraic expression for f'(x). d. Integrate to find an algebraic expression for f(x). Make...
2.4 We have defined the simple linear regression model to be y =B1 + B2x+e. Suppose...
2.4 We have defined the simple linear regression model to be y =B1 + B2x+e. Suppose however that we knew, for a fact, that ßı = 0. (a) What does the linear regression model look like, algebraically, if ßı = 0? (b) What does the linear regression model look like, graphically, if ßı = 0? (c) If Bi=0 the least squares "sum of squares" function becomes S(R2) = Gyi - B2x;)?. Using the data, x 1 2 3 4 5...
Problem 1.1 Consider the beam bending problem below 2 Po Consider the beam to be homogenous...
Problem 1.1 Consider the beam bending problem below 2 Po Consider the beam to be homogenous and linearly elastic, with length L, stiffness E, and moment of inertia I. The beam is cantilevered at x = 0 an d is supported by a linear spring of stiffness k at x-L. A uniformly distributed transverse load po (N/m) is applied to the upper surface a) Write and solve the GDE to obtain the exact solution for the deflection w(x) of this...
Problem 1. (The golden mean] In this problem you will find the exact value of the...
Problem 1. (The golden mean] In this problem you will find the exact value of the number 7, often called the golden mean or the golden ratio (sometimes this terminology is used for 7-1). The golden mean is defined by the following expression: 7= 1+- 1+ - 1 1+ 1+... (a) Consider the iteration Xn+1 = f(xn), where x1 = 1, and 1 f(x) = 1+2 1 1+: Recall the following result. Theorem. (i) If the function g : [a,...
Now let's take a completely different approach to this problem. If we can find the vector...
Now let's take a completely different approach to this problem. If we can find the vector equation for the electric field at point P due to the ring of charge, then we ca can use the expression X --Cs AV V - V E-ds Jao as an alternative way to find a general equation for the potential at point P. da Activity 5.3: AV from a Ring using the E-field Method Show that the electric field at point P from...
Find the value of the linear correlation coefficient A study was conducted to compare the average...
Find the value of the linear correlation coefficient A study was conducted to compare the average time spent in the lab each week versus course grade 7) for computer programming students. The results are recorded in the table below. 51 16 15 16 10 81 51 C) 0.462 A) 0017 B)-0.284 D) -0.335 8) Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below iertonnance 59 |의 65169 ↓ 5 7...
3.1. Two metallic rods of length L = 40 cm and unknown linear mass density A...
3.1. Two metallic rods of length L = 40 cm and unknown linear mass density A are suspended from a support using lightweight strings of length s = 8 cm, as shown in the diagram (a) below. The rods are then connected to a circuit in such a way that same current I = 20 A passes through both rods, but flows in opposite directions. When connected in such a way, the rods move away from each other and at...
Where λ is the charge density per unit length on the rod and εο is called the permittivity of fre...
where λ is the charge density per unit length on the rod and εο is called the permittivity of free space (it is a universal constant with the value 8.854 x 10-12 F/m (farads per metre)) The integral for the electric field can be evaluated exactly using a method called trigonometric substitution with the result AL We won't learn the method of trigonometric substitution in this course; however, you will approximate the value of the integral using methods we introduced...
A linear spring-mass system (without friction) satisfies m(d^2x/dt^2) = -kx, Derive that m/2 (dx/dt)^2 + k/2 x^2 = constant = E. Consider the initial value problem such that at t = 0, = x_0 and dx/dt = v_0. Evaluate E. Using the expression for conservation of energy, evaluate the maximum displacement of the mass from its equilibrium position. Compare this to the result obtained from the exact explicit solution.
Quantum Mechanics II
Consider the linear potential V = al.]. Use a Gaussian = exp(-Bx?) as the trial wave function, and calculate the ground state energy with the variational principle. De- termine the parameter B which minimizes the energy, and find Emin Express Emin = f x (hop/2m)1/3, and give the numerical value of the factor f. This is the upper bound of the true ground state energy, E Compare Emin with the exact result, E. = 1.019 (1?o?/2m)/3, and...
1 1. Find the exact sum of the following infinite series as indicated below: -1 1 1 1 1 + n(-4) 2(16) 3(64) 4(256) a. Let f(x) = 2n=1 (-1) x". I n a b. Find the power series for the derivative f'(x), and observe that it is a geometric series. Find its first term and common ratio. c. Use the formula 1-r to find an algebraic expression for f'(x). d. Integrate to find an algebraic expression for f(x). Make...
2.4 We have defined the simple linear regression model to be y =B1 + B2x+e. Suppose however that we knew, for a fact, that ßı = 0. (a) What does the linear regression model look like, algebraically, if ßı = 0? (b) What does the linear regression model look like, graphically, if ßı = 0? (c) If Bi=0 the least squares "sum of squares" function becomes S(R2) = Gyi - B2x;)?. Using the data, x 1 2 3 4 5...
Problem 1.1 Consider the beam bending problem below 2 Po Consider the beam to be homogenous and linearly elastic, with length L, stiffness E, and moment of inertia I. The beam is cantilevered at x = 0 an d is supported by a linear spring of stiffness k at x-L. A uniformly distributed transverse load po (N/m) is applied to the upper surface a) Write and solve the GDE to obtain the exact solution for the deflection w(x) of this...
Problem 1. (The golden mean] In this problem you will find the exact value of the number 7, often called the golden mean or the golden ratio (sometimes this terminology is used for 7-1). The golden mean is defined by the following expression: 7= 1+- 1+ - 1 1+ 1+... (a) Consider the iteration Xn+1 = f(xn), where x1 = 1, and 1 f(x) = 1+2 1 1+: Recall the following result. Theorem. (i) If the function g : [a,...
Now let's take a completely different approach to this problem. If we can find the vector equation for the electric field at point P due to the ring of charge, then we ca can use the expression X --Cs AV V - V E-ds Jao as an alternative way to find a general equation for the potential at point P. da Activity 5.3: AV from a Ring using the E-field Method Show that the electric field at point P from...
Find the value of the linear correlation coefficient A study was conducted to compare the average time spent in the lab each week versus course grade 7) for computer programming students. The results are recorded in the table below. 51 16 15 16 10 81 51 C) 0.462 A) 0017 B)-0.284 D) -0.335 8) Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below iertonnance 59 |의 65169 ↓ 5 7...
3.1. Two metallic rods of length L = 40 cm and unknown linear mass density A are suspended from a support using lightweight strings of length s = 8 cm, as shown in the diagram (a) below. The rods are then connected to a circuit in such a way that same current I = 20 A passes through both rods, but flows in opposite directions. When connected in such a way, the rods move away from each other and at...
where λ is the charge density per unit length on the rod and εο is called the permittivity of free space (it is a universal constant with the value 8.854 x 10-12 F/m (farads per metre)) The integral for the electric field can be evaluated exactly using a method called trigonometric substitution with the result AL We won't learn the method of trigonometric substitution in this course; however, you will approximate the value of the integral using methods we introduced...
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