The greater the distance, the less you need to exert to do work.

QUESTION 4 needs to be answered,

What is an inflection point?

Solve it Properly and with right answer.

Please answer part c and e onwards with working out and answer and please label the parts as you have answered a,b,d

What is the degree of freedom of the two questions

Question 6 a) The bore of each cylinder in a six-cylinder car engine is 45 mm and the stroke for each piston is 125 mm. calculate the cubic capacity of the engine in cubic centimetres (cm³); and calculate the clearance volume per cylinder for a compression ratio, r, of 8.75. b) The bore of each cylinder in a four-cylinder four-stroke internal combustion engine is 38 mm and the stroke of each piston is 165 mm. During testing, the engine runs at 180 revolutions per minute (rpm) with a pressure-volume indicator diagram showing a mean net area of 3.4 cm² and a diagram length of 1.2 cm. The pressure scale on the indictor diagram is set to 150 kN/m² per cm. Calculate the mean effective pressure (m.e.p) and the indicated power developed by this four-cylinder four-stroke engine. c) Figure Q6c shows a pulley system with a suspended load w of 2000 N. Calculate the following: (i) (ii) (iii) (iv) The effort force (FEffort) necessary to lift and hold a load of 2000 N. The ideal mechanical advantage…

Q1 (а) A tall standpipe as shown in Figure Q1(a) with an open top has an inner diameter 7 d=2.1 m and wall thickness t= 20 mm, Given the weight density of water y = 9.81 kN/m³ and water pressure is p = y h, calculate the height h of water that will produce a circumferential stress of 12 MPa in the wall of the standpipe. (i) (ii) Calculate the axial stress in the wall of the tank due to the water pressure.

Part I. Shorter problems focused on the fundamentals a. For the image at the right, the coordinate angles are a = 57°, ẞ= 121°, y=49°, and the point along a-a is (15,-6,3). What is the angle between lines a-a and b-b? Z b-b B LL F a (x,y,z) a-a Y b. If the magnitude of the force, F-3121bf, what is the magnitude projected along the a-a axis? y

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