Problem 1: A plastic component was subjected to a series of step changes in stress as follows: 1) An initial constant stress of 10 MN/m² was applied for 1000 seconds. 2) Then, the stress level was increased to a constant level of 20 MN/m². 3) After a further 1000 seconds the stress level was decreased to 5 MN/m² which was maintained for 1000 seconds. 4) Then, the stress was increased to 25 MN/m² for 1000 seconds. 5) After that, the stress was completely removed. If the material may be represented by a Kelvin-Voigt model in which the elastic constant E = 1.25 GN/m² and the viscous constant n= 125 GNs/m², calculate the strain 4500 seconds after the first stress was applied.

Question 1 a) Figure Q1a shows a bracket that can roll and move horizontally along a beam. A 1600 N force at 15° relative to the horizontal axis acts at A. Determine the force P at 25° relative to vertical axis necessary to keep the bracket static; (i) (ii) Calculate the downward resultant force acting vertically at A. Assume coplanar forces. 150 1600 N 250 P Figure Q1a b) If a pipe with an inner diameter of 36 mm is subjected to an axial load of 5.20 x 105 N and the maximum allowable stress in the pipe is 7.5 x 10º N/m², calculate the minimum wall thickness required for the pipe. Give your answer in millimetres (mm) to 2 decimal places. c) A wire with a Young's Modulus, E, of 8.5 x 106 N/m² and an original length of 1.5 m is under tension. If the wire length extension is 2.5 mm, calculate the stress in the wire. Give your answer in N/m² to 2 decimal places.

A1.2 Please help. Written on paper not typed on computer or keyboard please. Need help both questions. Please include all units, steps to the problem and information such as its direction or if it is in compression or tension. Thx.

Project 5: CLUTCH FLYWHEEL FLYWHEEL Figure.4: Coupled flywheels by engaging clutch The flywheel in Figure.4 has moment of inertia of 40 kg. m² rotates at 250 rpm. A second flywheel has moment of inertia of 21 kg. m²and rotates at 450 rpm. a) Find the speed when they are engaged by a clutch b) Determine the energy lost

Please solve 1 and 2 with neat good explainations please

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a) Figure Q1a shows a bracket that can roll and move horizontally along a beam. A 1600 N force at 15O relative to the horizontal axis acts at A. (i) Determine the force P at 25O relative to vertical axis necessary to keep the bracket static; (ii) Calculate the downward resultant force acting vertically at A.

Problem 3: (Final Answer: Louckling = 17.73 ft} In protest, a flag-pole sitter climbed to the top of 2-1/2" diameter, aluminum (E = 10,000 ksi) flag pole with a moment of inertia (1) of 0.53 in'. If the flag pole is 22 ft tall, and the flag-pole sitter is 289 Ib, how high can the sitter climb before the flag pole buckles?

Question is in the picture.

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