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A belt-and-pulley arrangement has a maximum belt tension of 150 lb on the tight side and 75 lb on the loose side. If the coefficient of static friction between the flat belt and the pulley is 0.30, calculate the minimum angle of contact required between the pulley and the belt.
1. an employee at general electric must order bottles of compressed methane to run her gas oven test facility. the
what is the change of internal energy and enthalpy of 4 kg nitrogen as it changes from 50oc and 100kpa to 100oc and
The lamp has a mass of 15 kg and is supported by a pole AO and cables AB and AC. If the force in the pole acts along its axis, determine the forces in AO, AB, and AC for equilibrium.
a student measures g the acceleration of gravity repeatedly and carefully and takes a final measurement of 9.5 ms2. his
Describe IN DETAIL how you could determine the required rate of heat addition or removal.
a spring is stretched 200mm by a 15kg block. if the block is displaced 100mm downward from its equalibrium position and
axial flow coolant pump for one lop pressurized nuclear reactor has 75 m head 6m3s flow rate 1440rpm 800 mm diameter
a six liter 6 l pot is fitted with a heavy lid that allows a maximum of 200 kpa of absolute pressure. heat is added to
After the initial cleanup effort at Three Mile Island, approximately 400,000 gallons of radioactive water remained in the basement of the containment building of the Three Mile Island Unit 2 nuclear plant. The principal sources of this radioactivity ..
For flow of viscous fluids through a 5 cm diameter pipe, for what flow rate in m3/h would we expect transition to turbulence?
a rigid steel bottle v 0.25 m3 contains air at 100 kpa 300 k. the bottle is now charged with air from a line at 260 k
A solution in which the analytical concentrations of Cu2+ amd A2- are 2.15 ×10-4 M and 4.00×10-4 M, respectively, has an absorbance of .654 when measured under the same conditions. Use this information to calculate the formation constant kt for th..
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