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1. Let yar, t) denote the longitudinal displacements in an elastic bar of length unity whose...
A long steel bar (length L-100 m, elastic modulus E = 2x 1011 N/m2, density ρ...
A long steel bar (length L-100 m, elastic modulus E = 2x 1011 N/m2, density ρ 7850 kgm3) of unit cross section is held at one end while hanging freely inside a deep pit and you are asked to estimate the longitudinal stress and displacement along the length of the bar Assuming linear elastic behavior, the internal elastic energy U of the hanging bar is given by the expression where z is the distance from the top of the pit...
Problem 1 (Submit): Longitudinal vibrations of an elastic bar with zero strain and stress at both...
Problem 1 (Submit): Longitudinal vibrations of an elastic bar with zero strain and stress at both ends satisfies the following initial-boundary value problem ras ux(0, t) = uz(r,t) 0 u(z,0) = 5 cos(x), ut(z,0) = 1-cos(2r). (a) Use the method of separation of variables to solve this problem. (b) Find the D'Alembert's solution for this initial-boundary value problem and compare it to the solution you found in (a).
Problem 1 (Submit): Longitudinal vibrations of an elastic bar with zero strain...
Consider a uniform bar of length L having an initial temperature distribution given by f(x), 0...
Consider a uniform bar of length L having an initial temperature distribution given by f(x), 0 < x < L. Assume that the temperature at the end x=0 is held at 0°C, while the end x=L is thermally insulated. Heat is lost from the lateral surface of the bar into a surrounding medium. The temperature u(x, t) satisfies the following partial differential equation and boundary conditions aluxx – Bu = Ut, 0<x<l, t> 0 u(0,t) = 0, uz (L, t)...
A string of length L is fixed at x-0 while the end at x L is attached to a mechanical arm. The mechanical arm moves ver...
A string of length L is fixed at x-0 while the end at x L is attached to a mechanical arm. The mechanical arm moves vertically, resulting in a string position that varies in time according to the boundary condition y(L,t) - f(t). The string is subject to gravity and initially supported along its length. At t - 0, the support is removed and the mechanical arm begins to move. The subsequent displacement of the string is governed by the...
Problem 1. Find the general solution of an 1D heat equation: T(x, t) = 4Txx(x, t)...
Problem 1. Find the general solution of an 1D heat equation: T(x, t) = 4Txx(x, t) with the boundary conditions T(0,t) = T(2,t) = 0. Note that T(x,t) denotes the temperature profile along x of a uniform rod of length 2. Problem 2. Solve the following 1D wave equation: 0ct(x, t) = 0xx(x, t) with the boundary conditions 0(0,t) = 0,(1,t) = 0, where 8(x, t) refers to the twist angle of a uniform rod of unit length. Problem 3....
(1) Length of graphs a) Let a path C be given by the graph of y g(x), a 3 < b, with a piecewise C...
Please solve these three questions!
(1) Length of graphs a) Let a path C be given by the graph of y g(x), a 3 < b, with a piecewise C1 function g : [a, b - IR. Show that the path integral of a continuous function f: IR2- R over the path C is b) Let g : [a, b] - IR be a piecewise C1 function. The length of the graph of g on (t, g(t)). Show that [a,b]...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional area A stressed by a force of magnitude F. As a result, the bar stretches by AL (Figure 1) Let us define two new terms: • Tensile stress is the ratio of the stretching force to the cross-sectional area: stress = 5 • Tensile strain is the ratio of the elongation of the rod to the initial length of the bar strain= 41 It...
1) Consider a pendulum of constant length L to which a bob of mass m is attached. The Q6. pendulum moves only in a two-dimensional plane (see figure below). The polar frame of reference attached to t...
1) Consider a pendulum of constant length L to which a bob of mass m is attached. The Q6. pendulum moves only in a two-dimensional plane (see figure below). The polar frame of reference attached to the bob is defined by er,ce where er is the unit vector orientecd away from the origin and e completes the direct orthonormal basis. The pendulum makes an angle 0(t) between the radial direction and the vertical direction e(t) The position vector beinge ind...
1. Let C be the parametric curve given by (x(t), y(t)), whose graphs are shown below. Both consis...
Please help me on the following homework problems, thank
you!
1. Let C be the parametric curve given by (x(t), y(t)), whose graphs are shown below. Both consis t entirely of quarter-circles and line segments. The domain of this curve is [0,10] x(t) y(t) 4 4 0 1 2 3 4 5 6 7 89 10 t 0 1 2 3 4 5 6 789 10 t (a) Find the area of the region in the xy plane bounded by...
Xosin(ot) Shown in the figure below is a rigid pendulum bar of I= 1 m and...
Xosin(ot) Shown in the figure below is a rigid pendulum bar of I= 1 m and mass m, 1 kg attached to a roller, of mass m, = 0.2 kg, whose motion is described by X, sin(@t), Xo = 1 [m]. Model the pendulum bar as a uniform slender rod which has a moment of inertia with respect to its mass centre Ig given by m1/12. Use tangential-normal coordinate system to analyze the dynamics of the pendulum bar and use...
A long steel bar (length L-100 m, elastic modulus E = 2x 1011 N/m2, density ρ 7850 kgm3) of unit cross section is held at one end while hanging freely inside a deep pit and you are asked to estimate the longitudinal stress and displacement along the length of the bar Assuming linear elastic behavior, the internal elastic energy U of the hanging bar is given by the expression where z is the distance from the top of the pit...
Problem 1 (Submit): Longitudinal vibrations of an elastic bar with zero strain and stress at both ends satisfies the following initial-boundary value problem ras ux(0, t) = uz(r,t) 0 u(z,0) = 5 cos(x), ut(z,0) = 1-cos(2r). (a) Use the method of separation of variables to solve this problem. (b) Find the D'Alembert's solution for this initial-boundary value problem and compare it to the solution you found in (a).
Problem 1 (Submit): Longitudinal vibrations of an elastic bar with zero strain...
Consider a uniform bar of length L having an initial temperature distribution given by f(x), 0 < x < L. Assume that the temperature at the end x=0 is held at 0°C, while the end x=L is thermally insulated. Heat is lost from the lateral surface of the bar into a surrounding medium. The temperature u(x, t) satisfies the following partial differential equation and boundary conditions aluxx – Bu = Ut, 0<x<l, t> 0 u(0,t) = 0, uz (L, t)...
A string of length L is fixed at x-0 while the end at x L is attached to a mechanical arm. The mechanical arm moves vertically, resulting in a string position that varies in time according to the boundary condition y(L,t) - f(t). The string is subject to gravity and initially supported along its length. At t - 0, the support is removed and the mechanical arm begins to move. The subsequent displacement of the string is governed by the...
Problem 1. Find the general solution of an 1D heat equation: T(x, t) = 4Txx(x, t) with the boundary conditions T(0,t) = T(2,t) = 0. Note that T(x,t) denotes the temperature profile along x of a uniform rod of length 2. Problem 2. Solve the following 1D wave equation: 0ct(x, t) = 0xx(x, t) with the boundary conditions 0(0,t) = 0,(1,t) = 0, where 8(x, t) refers to the twist angle of a uniform rod of unit length. Problem 3....
Please solve these three questions!
(1) Length of graphs a) Let a path C be given by the graph of y g(x), a 3 < b, with a piecewise C1 function g : [a, b - IR. Show that the path integral of a continuous function f: IR2- R over the path C is b) Let g : [a, b] - IR be a piecewise C1 function. The length of the graph of g on (t, g(t)). Show that [a,b]...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional area A stressed by a force of magnitude F. As a result, the bar stretches by AL (Figure 1) Let us define two new terms: • Tensile stress is the ratio of the stretching force to the cross-sectional area: stress = 5 • Tensile strain is the ratio of the elongation of the rod to the initial length of the bar strain= 41 It...
1) Consider a pendulum of constant length L to which a bob of mass m is attached. The Q6. pendulum moves only in a two-dimensional plane (see figure below). The polar frame of reference attached to the bob is defined by er,ce where er is the unit vector orientecd away from the origin and e completes the direct orthonormal basis. The pendulum makes an angle 0(t) between the radial direction and the vertical direction e(t) The position vector beinge ind...
Please help me on the following homework problems, thank
you!
1. Let C be the parametric curve given by (x(t), y(t)), whose graphs are shown below. Both consis t entirely of quarter-circles and line segments. The domain of this curve is [0,10] x(t) y(t) 4 4 0 1 2 3 4 5 6 7 89 10 t 0 1 2 3 4 5 6 789 10 t (a) Find the area of the region in the xy plane bounded by...
Xosin(ot) Shown in the figure below is a rigid pendulum bar of I= 1 m and mass m, 1 kg attached to a roller, of mass m, = 0.2 kg, whose motion is described by X, sin(@t), Xo = 1 [m]. Model the pendulum bar as a uniform slender rod which has a moment of inertia with respect to its mass centre Ig given by m1/12. Use tangential-normal coordinate system to analyze the dynamics of the pendulum bar and use...
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