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An engineer determines that a 40 cm long rod of 1020 grade steel will be subjected to a tension of 20 kN. The following two designs requirements must be met. The stress must remain below 145 MPa, and the rod must stretch less than 0.125 mm. Determine an appropiate value for the rod's diamter to meet these two requirements. Round up to the nearsest millimeter when reporting your answer
How will notches and holes affect the deflection of a cantilever beam? ie. increase or decrease? (Please provide citations)
An unsuited free diver can work in a pressure of up to 490KN/m^2 and a suited diver in pressure of up to 1815 KN/m^2. Calculate the maximum depths at which they might work in sea-water which has a specific gravity of 1.03.
A hot upsetting of stainless steel 316/316L, 2000mm dia disc, 200mm thickness is upset at 1200 degree Celsius to 150mm thickness. what will be the Upsetting force required to forge this disc and what will be the yield stress at this temperature.
calculate the pressure drop through the tubes for each selection. Recommend a final design that specidies water-flow rate, tube size, number of tubes, and tube length. Comment on your selection.
Find the velocity of the bullet and block just after impact.
Superheated water vapour at 180 psia and 500 degrees Farenheit is allowed to cool at a constant volume until the temperature drops to 250 degrees Farenheit. At the final state, determine
What is the communication time if the local conditions limit spacecraft visibility to elevation angles larger than = 18 degrees?
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
compare it with efficiency of an otto cycle operating with the same maximum pressure?
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
The car travels up the hill with a speed of v = (0.4s) m/s, where s is in meters, measured from A. Determine the magnitude of its acceleration when it is at point s = 50 m, where p = 500 m.
a Steel ally to be used for a spring application must have a modulus of resilience of at least 2.07 MPa. What must be the metal's minimum yield strength.
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