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The double pulley shown is attached to a 10-mmradius shaft that fits loosely in a fixed bearing. Knowing that the coefficient of static friction between the shaft and the poorly lubricated bearing is 0.40, determine the magnitude of the force P required to start raising the load.
A concrete pipe storm sewer is 4 ft in diameter, and drops 3 ft in elevation per mile length. What is the maximum capacity of the sewer in gpm when the pipe is full? Please show all work for points.
To test the aerodynamics of a new prototype automobile a scale model will be tested in a wind tunnel. For dynamic similarity, it will be required to match Reynolds number between model and prototype.
5 bolts are made of low carbon steel with a yield point in shear of 19200 psi. the bolts are 38 inch in diameter and
question 1. figure shows a pneumatic circuit diagram used for air supply and exhaust in an automatic control system.a
Two control rods are attached at A to lever AB. Using trigonometry and knowing that force in the right-hand rod is F2=20 lb, determine a.) the required force F1 in the left-hand rod if the resultant R of the forces exerted by the rods on the le..
Write a program that allows the user to enter a number that represent the month of a year (1 to 12) and uses a switch construct to convert the month number to its corresponding number of days, where January is considered the 1st month of a year and D..
nylon 12 is produced by step growth polymerization.a estimate the extent of reaction monomer conversion necessary to
a mass that weighs 8 lb stretches a spring 4 in. the mass is attached to a dashpot mechanism that has a damping
Design a beam that will carry a total load of 300 plf. Limit the span to 18 feet. Design a column that is capable of carrying a load of 50 kips. The length of the column is 16 feet
Metal balls 10 mm in diameter are to be annealed by heating them to 827°C then allowing them to cool slowly in air at 27°C to the point where they are in thermal equilibrium with the air. 2000 balls are annealed in one hour’s time. What is the total..
a 25 mm diameter uniform steel shaft is 600 mm long between bearings.a find the lowest critical speed of the shaftb if
a bus starts from rest on a 200 m radius curve and accelerates with its speed increasing at at 2 ms2. determine the
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