Chapter 7, Problem 19EP

Three alternatives are being considered for an air cleaning system. All three systems have a lifeof 10 years with no salvage value. System A has an initial cost of $29,000. During the first fiveyears of operation, the annual costs to operate system A are $5,000. During the second five years,the annual cost of system A increases to $16,000. System B has an initial cost of $43,000. Theannual cost to operate system B is $4,000, however, after the first year, this cost increases by$1,600 per year. System C has an initial cost of $58,000 with an annual cost of $2,400. System Crequires two upgrades: one during year 4 which costs $6,000, and the other during year 8 whichcosts $3,000. The MARR for this project is 17%. Determine which air cleaning system should beinstalled based on an economic analysis.

Show all work as much as you can and box out answers

Show as much work as possible and box out answers please

on-the-job conditions. 9 ±0.2- 0.5 M Application questions 1-7 refer to the drawing above. 1. What does the flatness tolerance labeled "G" apply to? Surface F A. B. Surfaces E and F C. Surfaces D, E, H, and I D. The derived median plane of 12 +0.2 0.5 0.5 CF) 20 ±0.2 0.1 7. O 12 ±0.2- H 0.3 ASME Y14.5-2009

elements, each with a length of 1 m. Determine the temperature on node 1, 2, 3, 4. 3. Solve the strong form analytically (you may choose Maple, MATLAB or Mathematica to help you solve this ODE). Compare the FE approximate temperature distribution through the block against the analytical solution. 1 (1) 200 °C 2 (2) 3 m 3 (3)

Compute the horizontal and vertical components of the reaction at the pin A. B A 30° 0.75 m 1 m 60 N 0.5 m 90 N-m

A particle is held and then let go at the edge of a circular shaped hill of radius R = shown below. The angular motion of the particle is governed by the following ODE: + 0.4 02 - 2 cos 0 + 0.8 sin 0 = 0 where is the angle in rad measured from the top (CCW: +), ė 5m, as = wis the velocity in rad/s, ==a is the angular acceleration in rad/s². Use MATLAB to numerically integrate the second order ODE and predict the motion of the particle. (a) Plot and w vs. time (b) How long does it take for the particle to fall off the ring at the bottom? (c) What is the particle speed at the bottom. Hint v = Rw. in de all questions the particles inside the tube. /2/07/25 Particle R 0 0 R eled with

If FA = 40 KN and FB = 35 kN, determine the magnitude of the resultant force and specify the location of its point of application (x, y) on the slab. 30 kN 0.75 m 90 kN FB 2.5 m 20 kN 2.5 m 0.75 m FA 0.75 m 3 m 3 m 0.75 m

The elastic bar from Problem 1 spins with angular velocity ω about an axis, as shown in the figure below. The radial acceleration at a generic point x along the bar is a(x) = ω 2 x. Under this radial acceleration, the bar stretches along x with displacement function u(x). The displacement u(x) is governed by the following equations: ( d dx (σ(x)) + ρa(x) = 0 PDE σ(x) = E du dx Hooke’s law (2) where σ(x) is the axial stress in the rod, ρ is the mass density, and E is the (constant) Young’s modulus. The bar is pinned on the rotation axis at x = 0 and it is also pinned at x = L.   Determine:1. Appropriate BCs for this physical problem.2. The displacement function u(x).3. The stress function σ(x).