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The spool has a mass of 75 kg and a radius of gyration . It rests on the inclined surface for which the coefficient of kinetic friction is . If the spool is released from rest and slips at A, determine the initial tension in the cord and the angular acceleration of the spool.
A lap joint needs to be designed using 20-mm diameter bolts to carry a load of 120 kN on the connecting plates. If the shear stress in each rivet is not to exceed 90 MPa, determine the number of bolts needed.
which of these two processes will produce the largest amount of work? (You must provide a full explanation for your choice).
Large stationary brayton cycly gas turbine power plant delivers a powr output of 100MW to an electric generator . Minimum temperature is 300K so T1= 300k max temp is 1600k
How many engagement points on the flywheel would be necessary to make this machine safe? Show your work.
Starting from the energy equation and using the one-dimensional heat conduction derivation as an example
determine the coordinates xc and yc of the point where the resultant load must act in order to produce uniform normal stress in the column.
Determine the time taken for the crate to come to a rest and the distance travelled if the coefficient of dynamic friction is 0.4
25 washers have a combined mass of 1 lb. how much money is recovered per day from the sale of scrap washers?
Two tow trucks lift a 660 lb motorcycle out of a ravine following an accident. If the motorcycle is in equilibrium in the position shown, what are the tensions in cables AB and AC?
A triangular field with vertices OPQ has sides OP equal 402 m, PQ equal 388 m, and QO equal 254 m . find perpendicular distance from the vertex P to the opposite side.
An Industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance force applied to a 2in diameter axle. What is the required actual mechanical advantage of the system?
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must be added to vanadium to yield an alloy that contains 1.55 x 1022 Nb atoms per cubic centimeter. The densities of pure Nb and V are 8.57 an..
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