The Ian J are correct but I cant get the correct answer for K, please help me and show all work! If the tension in cable DE is 760 N, determine the moments of this tensile force (as it acts at point D) about point O and about line OF. Answers: M₁ = ( i+ |j+i !k) N*m M = N*m OF ง c If the tension in cable DE is 760 N, determine the moments of this tensile force (as it acts at point D) about point O and about line OF E 2.3 m 3.1 m 2.3 m 2.9 m Answers: BC-CD-2.4 m D 1.3 m 2.0 m B 39 Mo- -2264.42 i+ 1657.188 j+ i k) N-m MOF-i N-m

The Ian J are correct but I cant get the correct answer for K, please help me and show all work! If the tension in cable DE is 760 N, determine the moments of this tensile force (as it acts at point D) about point O and about line OF. Answers: M₁ = ( i+ |j+i !k) Nm M = Nm OF ง c If the tension in cable DE is 760 N, determine the moments of this tensile force (as it acts at point D) about point O and about line OF E 2.3 m 3.1 m 2.3 m 2.9 m Answers: BC-CD-2.4 m D 1.3 m 2.0 m B 39 Mo- -2264.42 i+ 1657.188 j+ i k) N-m MOF-i N-m

Essentials Of Investments

11th Edition

ISBN:9781260013924

Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.

Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.

Chapter1: Investments: Background And Issues

Section: Chapter Questions

Problem 1PS

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The force of a spring obeys Hooke's law: F = -kx for some positive constant > 0, where x = x(t) measures the displacement from its rest position of a particle of mass m > 0 attached to the spring. i. Use Newton's Second Law to show that the equation of motion of the particle is +w²x=0. Determine w in terms of k and m. Find the solution to this equation if the particle is released at time t 0 from position x = 4 with = velocity 2w. ii. Show that = 1 w2 E = + 2 is a conserved quantity of the motion. What is the value of E for the above solution. What is the meaning of the two terms on the right hand side?
A particle moves along line segments from the origin to the points (2, 0, 0), (2, 5, 1), (0, 5, 1), and back to the origin under the influence of the force field F(x, y, z) = z2i+ 3xyj + 3y2k. Use Stokes' Theorem to find the work done.
A system is described by the action S[r, r'] = [ dt (x² + 4rª + mr³4), r(t) where m is a constant. Find the Euler-Lagrange equation for r = which extremises S. Interpret each of the terms that appear in the Euler- Lagrange equations in terms of Newton's second law. Find a conserved quantity for this system.
The two-dimensional wave equation describing the vibrations of an infi- nite string is Θη Ot2 2021 მ2 where n = n(x,t), — -x 0 is a constant. Its general solution can be written as n(x,t) = F(x-ct) + G(x + ct), with F and G arbitrary smooth functions. If at time t = 0 the shape of the string is n(x, t = 0) at 9 = 5+x4 and the string is released with velocity (x, t = 0) = 0, determine n(x,t) for t > 0.
I need typing clear urjent no chatgpt used i will give 5 upvotes pls full explain
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Shown at right are two boxes (mass m and 2m) attached to identical springs, and attached to each other by a string running over a pulley. The springs are initially neither stretched nor compressed and the masses are initially at rest. The blocks then speed up and eventually slow down again until each block has moved a distance s, at which point both blocks are momentarily at rest. Determine a symbolic expression in terms of given variables for the spring constant of each identical spring. No explanation necessary. We'll use the work-energy theorem with a system consisting of both blocks, the string, both springs, and the Earth. The net external work on this system is zero (the various normal forces all act on points of contact that are not moving). The initial and final kinetic energy for both blocks is zero because they are not moving 2m m ΔΕ = 0 ks² · − 0 + ¼½ks² − 0 + mgs − 0 + (−2mgs) − 0 = 0 k = mg S
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