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Q1: The problem below can be regarded as a problem of structural stability. For certain values of N lower than a critical value Ner, a perturbation A theta «1 applied to the initial rest configuration theta1 =O will result in the system going back the same initial configuration, i.e. theta 2 = theta 1 = theta. However, ifN>Ner, a perturbation A theta <1 applied to the initial rest configuration theta 1 = 0 will result in a new,permanent, rest configuration 02 #0. The scope of this exercise is to find what is the value of Ner for a given generic length of the rigid bar l, stiffness k and mass m. In order to solve the problem and find Ner: you have to 1. apply the principle of work and energy, T1 + U1 =T2 + U2, and 2. consider an angle 0 very small so that you can assume the following Taylor series expansions trumeated to the first and second order \sin (\theta)=\theta+\ldots \ldots \cos (\theta)=1-\frac{\theta^{2}}{2}+\ldots See Answer
Q2: A5.2 – Find the mobility, m, of each mechanism below – Show all work.- See Answer
Q3: A5.3 - The mobility of the mechanism illustrated is m = 1. Use the Kutzbach criterion to determine the number of lower pairs and the number of higher pairs. Is the wheel rolling with-out slipping, or rolling-and-slipping, at point A on the wall? Clearly number each link and label the lower pairs (j1) and higher pairs (j2) on the diagram. Is the answer correct? Briefly explain. Identify the likely candidates to be the input link. See Answer
Q4: The following a proper set of linearized equations. Why or why not? (Include the why or why not part on the work that you upload) \delta \ddot{x}_{1}+3 \delta \dot{x}_{1}+2 \delta x_{1}=3 \cos (t) \delta \ddot{x_{2}}^{2}+\delta \dot{x_{1}}+2 \delta x_{1}=0 O True O FalseSee Answer
Q5: In a rainy and windy day, a man is walking alone to a nearby grocery store during this pandemic. He walks at 5 km/h in the direction of a 20 km/h wind. The raindrops fall vertically at 7 km/h in still air. Now answer the following questions: See Answer
Q6: A5.5 Create a skeleton/kinematic diagram of the excavator shown below. Use the Kutzbach criterion to determine the mobility. Clearly number each link and label the lower pairs (ji) and higher pairs (j2) on the diagrams. Comment on whether the calculated DOF makes sense. See Answer
Q7: 2-butanone (C4H8O), also known as methyl ethyl ketone or MEK, is a major industrial chemical used as a commercial cleaner and solvent for glues, paints, coatings, and printing ink. A spillage of an unknown colourless chemical was found in the vicinity of an MEK production facility. The unknown compound was analysed by a range of spectroscopic techniques to determine its composition. You are provided with IR, 'H NMR, 13C NMR and mass spectra. 2) With reference to the key aspects of each of the 4 spectra fully explain your answer 1) State if you believe the unknown is MEK 3) Which of the above techniques would be appropriate for determining the relative proportion of MEK and 1-butanol present in a mixture and why? See Answer
Q8: A8.3 – Continuation of A7.5. The inversion of a slider-crank mechanism shown below is driven by link 2 at= 20 rad/s ccw. Using the velocity data found in A7.5, find the angular accelerations of links 3 and 4.W2Also find the linear acceleration vectors for point C and point P, both located on link 3. Report bothmagnitude and direction for all quantities. \mathrm{R}_{\mathrm{BA}}=40 \mathrm{~mm} R_{C A}=35 \mathrm{~mm} \mathrm{R}_{\mathrm{BP}}=142 \mathrm{~mm} ZCAB = 75° \alpha_{2}=100 \mathrm{rad} / \mathrm{s}^{2} \mathrm{ccw} See Answer
Q9: A8.4 - A four-bar linkage is shown below. Lines to find the instant centers are already drawn on the figure. (a) Use them to calculate and confirm that wz = 0.428 rad/s ccw and Wq =0.287 rad/s cw. (b) Draw* the acceleration vector loop diagram, and use it to (c) find the magnitude and direction of a, and a.. (d) Find the magnitude and direction of the absolute acceleration of point P on link 3. Tip: use a scaled acceleration image of link 3. Link 1 is 100 in. long. Link 2 is 40 in. Iong Link 4 is 60 in. long. \omega_{2}=1.5 \mathrm{rad} / \mathrm{s} \mathrm{ccw} \alpha_{2}=1 / 2 \mathrm{rad} / \mathrm{s}^{2} \mathrm{cw} *An acceleration diagram has been started for you on this page. It establishes a drawing scale which you should use to complete the diagram. However, feel free to use your own paper and draw at any scale you find convenient. See Answer
Q10:Need to write how we read Hydrometer 0.760/0.8-30 300-330 mm need real instructions with pictures for each step Typed or Handwritten anything Link :- https://www.grainger.com/product/THERMCO- Hydrometer-Specific-Gravity-32GC62See Answer
Q11:Instruction Need an PPT OF 17-18 Slides plus name and question slides Student already done dissertation, make ppt based on it. Make the all slide white write the full name for my report my name and number like the report Students' desired points must be included. Write what is the main benefit from serep, sensors etc, filters What is the different between expansion and reduction?! Add the table and five mode shape from the report Add the last table for filter Add the four results from the filter What is the benefit from using serep What is the benefit from using butter worth filter Add the the table from lab experiments and ansys Add the conclusion and research recommendations Add the experiment photo from the report What is the benefit from using sensors?! And what is the benefit from using sensors?! Don't make it a lot of word it should pictures and word Where is finite elements designed ?! And structures picSee Answer
Q12:তাল T b তাল 140 h 7 12/n The above lifting tool is given. The geometric parameters and the coefficient of static friction ?0 between clamp and load are listed below, the weight G is arbitrary. Calculate the minimum distance x given in the sketch in the unit m(meter) at which the load can just still be lifted. 11=4,5m, 12=4,3m, b=1,7m, a=22,9⁰ μ0=0,65 Important for the calculation: The sketch is not true to scale.See Answer
Q13:Q1. Determine the angular velocity (0) and angular acceleration (C) of Link DC of the four bar linkage mechanism shown in figure 1. Input link AB rotates at 100 rev/min in anti-clockwise direction with uniform velocity. B 600 mm 300 400 mm 450 A Figure 1 C 300 mm DSee Answer
Q14:Q2. Find the velocity and acceleration of the piston and the angular velocity and angular acceleration of link AB for the crank slider mechanism shown in figure 2. The crank OA rotates anti-clockwise at 500 rad/min with constant velocity. Point O is fixed. A 200 mm 45° Figure 2 100 mm 60°See Answer
Q15:Q3. A piston, connecting rod and crank mechanism is shown in the diagram. The crank rotates at a constant velocity of 300 rad/s. Find the acceleration of the piston and the angular acceleration of the link BC. The diagram is not drawn to scale. Crank AB is rotating in clockwise direction. 4444 с 170 mm 25° 600 B 50 mmSee Answer
Q16:Q4. In Fig. below the angular velocity of the crank OA is 600 r.p.s. Assume crank is rotating with constant velocity. Determine the linear velocity and acceleration of the slider D and the angular velocity and angular acceleration of the link BD, when the crank is inclined at an angle of 75° to the vertical. The dimensions of various links are: OA = 28 mm; AB = 44 mm; BC 49 mm; and BD = 46 mm. The center distance between the centers of rotation O and C is 65 mm. The path of travel of the slider is 11 mm below the fixed point C. The slider moves along a horizontal path and OC is vertical. 75° B D pfmmmmmm wwwwwwwwwSee Answer
Q17:Q1. Determine the angular velocity (0) and angular acceleration (a) of Link DC of the four bar linkage mechanism shown in figure 1. Input link AB rotates at 100 rev/min in anti-clockwise direction with uniform velocity. B 600 mm 300 400 mm 450 A Figure 1 300 mmSee Answer
Q18:Q2. Find the velocity and acceleration of the piston and the angular velocity and angular acceleration of link AB for the crank slider mechanism shown in figure 2. The crank OA rotates anti-clockwise at 500 rad/min with constant velocity. Point O is fixed. A 2214 B 200 mm 45° Figure 2 100 mm 600See Answer
Q19:Q3. A piston, connecting rod and crank mechanism is shown in the diagram. The crank rotates at a constant velocity of 300 rad/s. Find the acceleration of the piston and the angular acceleration of the link BC. The diagram is not drawn to scale. Crank AB is rotating in clockwise direction. C Ja 25° 170 mm 600 B A 50 mmSee Answer
Q20:Q4. In Fig. below the angular velocity of the crank OA is 600 r.p.s. Assume crank is rotating with constant velocity. Determine the linear velocity and acceleration of the slider D and the angular velocity and angular acceleration of the link BD, when the crank is inclined at an angle of 75° to the vertical. The dimensions of various links are: OA = 28 mm; AB = 44 mm; BC 49 mm; and BD = 46 mm. The center distance between the centers of rotation O and C is 65 mm. The path of travel of the slider is 11 mm below the fixed point C. The slider moves along a horizontal path and OC is vertical. A 75° B mmmmmmmmSee Answer

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