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The tensioning mechanism of a magnetic tape drive has a mass of 0.4 kg, and its center of gravity is at G. The tension T in the tape is maintained by presetting the tensile force in the spring at B to 14 N. Calculate T and the magnitude of the pin reaction at A.
A 4 in. in diameter shaft moves through a well-oiled sleeve that is 12 in. long. The force required to move the shaft is 25 lbf, and the shaft velocity is 5 in./s.
Determine whether these conditions are true or false.
The 3.5-Mg engine is suspended from a spreader beam having a negligible mass and is hoisted by a crane which exerts a force of 40 kN on the hoisting cable. Determine the distance the engine is hoisted in 2.4 s, starting from rest.
A thin-walled cylindrical tank of radius r is subjected simultaneously to internal pressure p and a compressive force P through rigid end plates. Determine the magnitude of force P to produce pure shear in the cylindrical wall.
Find the pmf of D2. One point of this exercise is to convince you that Dn is a useful rv for proving theorems, but not an rv that is useful for detailed computation. It also shows clearly that Dn can depend on more than the first n source letters.
Local ambient conditions are 100 kPa, 20?C. Using an isentropic compressor efficiency of 80%, determine the power required to drive the compressor and the rate of heat rejection in the after cooler.
FeCl3 is added to remove excess phosphate. The following reactions occur (the charges are in parentheses): FeCl3 -> Fe(3+) + 3Cl(-) Fe(3+) + PO4(3-) -> FePO4
The proposed highway has two tangents of bearings N 45Degrees 54' 36" E and N 1 Degree 22' 30" W. The highway design engineer, attempting to obtain the best fit for the simple circular curve join these tangents, decides that the external is to be ..
The wheel of radius r rolls without slipping and has an angular velocity w. Write an expression for the velocity of point A in terms of theta and show that the velocities of A and B are perpendicular to one another
A soil compacted in laboratory had an OMC of 13.5 % and corresponding bulk density of 1.65 gm/cc. The soil was left overnight due to which a 10% reduction in OMC was observed. The specific gravity of the soil solids was found out to be 2.46. What ..
The General Hospital is evaluating new office equipment offered by three companies. The interest rate is 8%. Company A Company B Company C Cost $500 $600 $700 Annual benefit 130 115 100 End of useful life salvage value 0 250 180 Useful life (yrs) 5 5..
The mechanical properties of aluminum may be improved by incoporating fine particles of lauminum oxide (al2O3) Given that the moduli of electricity of this material are respectively 69GPa and 393 GPa plot modulus
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