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Question 1: Give examples, from your own experience, of situations where friction is (a) desirable, and (b) undesirable.
Question 2: Give examples, from your own experience, of situations where wear is (a) desirable, and (b) undesirable.
Describe the principle and operation of an hearth furnace. Possible references: Making and Shaping of Steels by the American Society of Metals and Google resources.
four forces are applied to a W200x35.9 rolled beam as shown. determine the principal stresses and maximum shearing stress at point a.
as shown in the ?gure a bar is supported by two springs and a damper. the bars left end is free to move vertically and
part-1suppose that a simple pendulum is attached to our spring-damper-mass system. a simple schematic of the model is
carbon dioxide enters an adiabatic compressor at 100kpa and 300k at a rate of 0.5kgs and exits at 600kpa and 450k.
What is the mass flow rate of oxygen in lbm/s? Note that the inside diameter of a nominal 2 inch schedule 40 steel pipe is 2.067inches. Assume ideal gas principles apply.
Average pressure at end of stroke? Upsetting force required at the end of the stroke? If friction is neglected, what is the amount of upsetting force?
The 25-kg bar has a centre of mass at G.If it is supported by a smooth peg at C,a roller at A and cord AB, determine the reactions at these supports.
A house is maintained at 1 atm and 24 C and warm air inside a house is forced to leave the house at a rate of 150 m^3/h as a result of outdoor air at 5C infiltrating into the house through the cracks. Determine the rate of net energy loss of th..
How the tensile stress and compressive stress result in the moment about neutral axis when the beam fails
What is a beam? What factors determine the maximum load that it can take without failure?
a 2.5 lbf block b is moving with a velocity vo of magnitude vo 6fts as it hits the 1.5 lbf sphere a which is at rest
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