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for a neutral surface layer, plot wind speed against height on linear and on semi-log graphs for friction velocity of .5 m/sec and aerodynamic roughness length (m) of:
a. 0.001 c. 0.005 d. 0.01 e. 0.02 b. 0.002 f. 0.05 g. 0.1 h. .02
SEM212 - Aim of this demonstration is to use measurements of the load required to propagate a crack (tear) in packaging tape to determine its fracture toughness.
Design life is 9630 hours, rotating at 250 rpm, load of 880 lbs, what is the basic design load rating (assuming no axial loads)?
The humidity of air can be determined by use of two different thermometers; a 'dry bulb' thermometer and a 'wet bulb' thermometer. explain how these thermometers can be used to estimate the amount of water vapour in the air.
The block is a cube that is 300mm on each side. Assume the block is incredibly tall. At steady state, what is the velocity of the block?
A layer of water seperates two smooth surfaces a distance of 2r. Derive an experssion for the force needed to pul the two surfaces apart. Consider the bottom surface fixed. What is the force needed to seperate the top surface?
Calculate these two sets of centerline and control limits. Once points are plotted, how will the results of these two charts differ?
A 15cm cube of mass 3kg is lubricated with SAE 10 oil at 20oC (dynamic viscosity of 0.104Ns/m2) slides down a 10o inclined plane at a constant velocity. Estimate the speed of the body if the oil film has a thickness of 2mm and the velocity distrib..
a disk has a mass of 4kg and a radius of 90mm, it is at rest when it is placed in contact with the belt, which moves with a constat speed (v =15m/s). knowing that friction is .25 between the disk and the belt. Determine the number of revolution by..
Determine Compressor Size in Watts that is suitable to satisfy certain specific needs, The drinking water needs in a production facility with 20 employees is to be met by a water bubbler type water fountain.
Draw the block diagram of the uncontrolled seat Plot the open loop displacement response of the uncontrolled seat to a step input
A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is made is a rod 25 mm in diameter, calculate the longitudinal engineering strain and true strain that the wire has undergone during processing.
I would expect somthing like the requirement to execute the equation, please explain each term in the equation with its engineering units.
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