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Test Specimen 4140 CF steel 6061 T6 Al Gray Cast iron 40 FC Brass 360 Impact Energy (J or ft-lb) 48.5 ft-lb 25 ft-lb 12 ft-lb 27 ft-lb Impact Strength (J/m or ft-lb/in) 123.096 ft-lb/in 63.452 ft-lb/in What is the final analysis/ overall observation from the data? 30.457 ft-lb/in 68.528 ft-lb/in

Academic) The following tensile data were collected from a standard 12.827 mm diameter test specimen of copper alloy. The specimen was tested under tensile load until rupture. After fracture, the sample length is 76.708 mm and the diameter is 9.5 mm. Load (kN) Sample Length (mm) 50.8 13.4 50.842 26.7 50.897 33.4 50.957 40.0 51.0286 46.7 51.816 53.4 57.404 55.2 63.5 50.7 76.708 Calculate: 1. Ultimate Engineering Tensile strength: 2. Engineering stress at fracture: 3. True stress at fracture: 4. Percent elongation of the tested copper alloy specimen: 5. Percent reduction of area of the tested copper alloy specimen:

Question 8. The following figure represents three hardness-testing techniques of materials. Describe their specifications, how there are conducted and their potential applications? 8 - Shape of Indentation Test Indenter Side View Top View Load Brinell 10-mm sphere P of steel or tungsten carbide Vickers Diamond 136° microhardness ругamid Rockwell and 60 kg) 100 kg } Rockwell 150 kg) Diamond 120° superficial cone: s - in.- diameter Rockwell 15 kg 30 kg } Superficial Rockwell 45 kg) steel spheres

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2- A piece of muscle specimen has the initial length of 30mm and square cross section with original side of 12 mm was tested using a tensile test. The applied tensile force of 20 N resulted in deformation (AL) of 10mm.The muscle remained in the elastic deformation region during the test. a) Determine the modulus of elasticity of the muscle specimen (make sure to include stress (ơ) and strain (ɛ1ong)in your answers) b) If the side of square cross section measured at the maximum longitudinal stretch was 10.5 mm, determine the Poisson ratio of the muscle specimen c) Determine modulus of rigidity (G) (Ans: E=0.4167 MPa, v=0.375, G=0.1515 MPa)

Please Use excel Shee t Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.

You decide to use a lever to move a heavy object.  The object is 0.1 m from the fulcrum, and the other end of the lever is 1.9 m from the fulcrum.  If you can push down with a 200 N force, what is the heaviest object, in kg, you can lift with that lever?  Round to three significant figures

I need answers to questions 7, 8, and 9 pertaining to the print provided. Note: A tutor keeps putting 1 question into 3 parts and wasted so many of my questions. Never had a issue before until now, please allow a different tutor to answer because I was told I am allowed 3 of these questions.

Mechanical engineering assistance. Please answer to the best of your ability. Show all work that is necesary.

Examine Notes: Attempt Six Questions Only. rever necessa , Q1] (20 Marks) Answer with true (T) or false (F), corrects the wrong phrases, and gives sho reasons for correct and corrected statements: 1- High chromium irons are basically grey cast irons alloyed with 12 to 30 % Cr. yous board-19qgo orT-1 2- The drawbacks of Al- Li alloys are their high young modulus and high density.&M 0) (0 3- Vulcanized rubbers are classified under thermoplastic polymers. 4- Diamond is a stable carbon polymorph at room temperature and atmospheric pressure. ( 5- The metallic ions of ceramic are called anions, and they are positively charged. yldgiH-S 69001(6

Case Study: Paula’s Pain Paula has worked for Brindle Corporation for 3 years.  During this time, she has worked as a machine operator/cell leader in various work cells.  Recently, the plant went to mandatory 12-hour shifts and plans to remain on this schedule for several months. Paula’s present work cell is manufacturing 3-inch diameter exhaust tubes that are made from stainless steel.  These tubes get a hole punched in them, a flange welded on, and burrs ground off.  The pipe then gets placed into a gage to check that it was made correctly.  (The tubes weigh about six pounds.) Paula has been performing the welding operation.  She leans into the machine and loads the part into a fixture then positions the flange.  Both pieces are clamped (using hand clamps) into position and the machine is cycled by depressing two palm buttons. The gaging operation requires placing the finished part into the gage and clamping it (using hand clamps) into place. A pin is depressed to verify the position…

people in a collision. * Decide whether each of the following statements is true (T) or false (F). Place your answer in the blank space provided. a. Restraining features operate continuously while you are driving. b. Operational features hold vehicle occupants in place. C. Brakes are an example of a structural feature. d. Crumple zones are examples of operational features. e. An air bag is an example of a restraining feature. 5. Crumple zones increase the occupants and the interior of the vehicle. of the collision between the

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Question 11) Roger gave the following account of a roller-coaster ride: 1 tried a brand-new ride at a science centre. There's a computer screen that tells you how much the car and the people in it weigh and how high and fast you travel. You get into the car and they strap you in. The car weighs 600 kg. At the top, it moves horizontally at a speed of 1 m/s. Then you drop 30 m, make a loop into the air and finish by riding over an 8-m hill. I don't remember our maximum speed or our speed at the top of the loop, but the ride was fantastic!" Answer the following questions without taking the force of friction into consideration. Show your calculations for each question. A v=1 m/s 20 m 8 m a) What is the highest speed Roger could have attained? What is the potential energy of the roller-coaster car when it is at the top of the b) loop? c) What is the kinetic energy of the car as it passes over the top of the 8 m hill? d) What is the total mechanical energy of the system?

heck my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The loading for a beam is as shown in the figure, where F1= 19 lb, F2= 20 lb, F3= 35 lb, F4= 2O Ib, and F5 = 15 lb. F1 F2 F3 F4 F5 O B 6 in 8 in.-8 in. -6 in.- Determine the reaction at A. (You must provide an answer before moving to the next part.) The reaction at A is 76 c 8 Ib raw ill 10:45 PM ENG 69°F Mostly cloudy 10/6/2021 pe here to search 近

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Choose the LETTER from the stress strain graph that matches the stress strain graph attributes listed below.