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Apr 3, 2024
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Ryerson University Department of Mechanical and Industrial Engineering MEC411 Final Evaluation, Part 3, Winter 2020 April 9
th
Duration: 45 minutes Instructor: Kourosh Zareinia
This examination is OPEN TEXTBOOK. Please show all your work in the space below each question. NAME: ID: By submitting my exam online: " I solemnly declare that I will complete this examination independently, with full compliance to the Senate Policy 60 Academic Integrity, and meeting the requirements stated in the examination.
"
Question A. Consider the following input parameters for a disk cam with a translating knife edge follower with zero offset (CAM rotates in CCW direction): Base circle diameter ࠵?
"
= 4.0 ࠵?࠵?
Interval Initial angle for interval (deg) Final angle for interval (deg) Type of motion Rise (+) or Return (-) cm 1 0 135 Parabolic 2.5 2 135 225 Dwell 0 3 225 360 Harmonic -2.5 i)
Compute the follower displacement for these angles analytically using equations in the textbook: (
࠵? = 45°,85°, 150°, 180°, 250°,320°
) ii)
Plot the displacement diagram iii)
Construct the cam profile graphically.
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- Astronomy Question: Read the questions slowly and answer with precise and long details about each of the questions. Answer correctly and follow my guidelines for a long and wonderful review after results. Your target/main observable galaxy is the whirlpool galaxy. Target: Whirlpool Galaxy Object Type: Galaxy Distance: 37 million light-years Constellation: Canes Venatici. DO NOT COPY AND PASTE OTHER WORK OR THINGS FROM THE INTERNET, use your own words.Provide refernces if used In 500 words, please explain the relevance of this object to the physics course material in university andits importance to astronomy. (Some question you may seek to answer are: What beyond the objectitself is learned by studying this class of objects? What sorts of telescopes and observations would beneeded for more detailed, broader reaching studies of this source and objects of its nature?)arrow_forwardCathy Gwynn for a class project is analyzing a "Quick Shop" grocery store. The store emphasizes quick service, a limited assortment of grocery items, and higher prices. Cathy wants to see if the store hours (currently 0600 to 0100) can be changed to make the store more profitable. Time Period Daily Sales in the Time Period 0600-0700 $40 0700-0800 70 0800-0900 120 0900-1200 400 1200-1500 450 1500-1800 500 1800-2000 600 2000-2200 200 2200-2300 50 2300-2400 85 2400-0100 40 The cost ofthe groceries sold averages 65% of sales. The incremental cost to keep the store open, including the clerk's wage and other operating costs, is S23 per hour. To maximize profit, when should the store be opened, and when should it be closed?arrow_forwardplease help solve A-F. thank you You are an engineer working on a project and your prototype has failed prematurely. You question whether or not a key component of the prototype was manufactured with the correct material. There are two way to check for the material properties. The first way is to have a material certification done to confirm the exact material composition. This will take some time. The second method to confirm the material properties is to make an ASTM test sample and test for the material properties. This tensile test was completed on a test sample with an initial diameter of .501” and an initial length of 2”. The Load-Deflection data for this tensile test is below. Use this data to answer the first set of questions on the Final Exam in eLearning. A. Determine the Ultimate Tensile Strength B. Determine the 0.2% Offset Yield Strength C. Determine the value of the Proportional Limit D. Determine the Modulus of Elasticity E. Determine the Strain at Yield F. Calculate %…arrow_forward
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