Question Solved1 Answer A circular shaft is actued upon by a combination of loadings: an applied torque that produces a constant shear stress of 56 MPa, an axial force that produces a constant normal stress of 70 MPa, and a bending moment that produces a completely reversed normal stress of +140 MPa. Determine the factor-of-safety (n) using the Goodman theory for combined loading. The shaft is machined to a diameter of (2.5 cm) and has a keyway that results in a reduced stress concentration factor (Kf) equal to (1.15). The shaft operates at 100 °C. Also, the ultimate tensile strength (Sut) is 525 MPa.

A heat engine operating between two reservoirs at 100 K and 300 K is used to drive heat pump which extracts heat from the reservoir at 300 K at a rate twice that at which engine rejects heat to it. If the efficiency of the engine is 40 % of the maximum possible and the co efficient of performance of heat pump is 50 % of the maximum possible, make calculations for the temperature of the reservoir to which the heat pump rejects heat. Also work out the rate of heat rejection from the heat pump if the rate of supply of heat to the engine is 50 kW.

Air at 80 degrees Fahrenheit and 14.7 psia with a mass flow rate of 0.6 lbm/sec enters a compressor and leaves at 70 psia and 430 degrees Fahrenheit through an exit area of 0.007 ft^2.  The measured heat interaction rate with the 80 degree Fahrenheit factory room is 3 Btu/sec.  Use constant Cp = 0.24 Btu/lbm oF a) Calculate the compressor work rate.   b) Compute the entropy generation rate for the overall process.  

1 Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 105 kN was recorded. Use a factor of safety of 3.0. Part 1 of 2 1,5 m D B 3 m -3 m 48 kN 48 kN Determine the required diameter of rod AC. The required diameter of rod AC is mm.

Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 125 kN was recorded. Use a factor of safety of 3.0. 1.5 m 3 m 48 KN 48 KN Determine the required diameter of rod AC. The required diameter of rod AC is mm

thermo 2 help plz Air, at \( 80^{\circ} \mathrm{F} \) and \( 14.7 \) psia with a mass flow rate of \( 0.6 \mathrm{Ibrm} / \mathrm{sec} \) enters a compressor and leaves at 70 psia and \( 430^{\circ} \) F through an exit of area 0007 . th \( ^{2} \). The measured heat internction rate with the \( 80^{\circ} \mathrm{F} \) factory room is \( ₹ \mathrm{Bth} / \mathrm{sec} \). Use constant \( \mathrm{C}_{p}=0.24 \mathrm{Btw}_{\mathrm{f}} \mathrm{b}_{\mathrm{m}}{ }^{\circ \mathrm{F}} \) a. Calculate the compressor work rate, W. b. Compute the entropy generation rate for the overall process.

Required information Problem 15-4A (Algo) Preparing job cost sheets, recording costs, preparing inventory ledger accounts LO P1, P2, P3 [The following information applies to the questions displayed below] Watercraft's predetermined overhead rate is 200% of direct labor. Information on the company's production activities during May follows. a. Purchased raw Required information Problem 15-4A (Algo) Preparing job cost sheets, recording costs, preparing inventory ledger accounts LO P1, P2, P3 [The following information applies to the questions displayed below] Watercraft's predetermined overhead rate is 200% of direct labor. Information on the company's production activities during May follows. a. Purchased raw materials on credit, $220,000 b. Materials requisitions record use of the following materials for the month. Job 136 Job 137 Job 138 Job 139 Job 140 Total direct materials Indirect materials Total materials requisitions Job 136 Job 137 30h 138 300 119 $ 49,500 32,500 19,400 c. Time tickets record use of the following labor for the month. These wages were paid in cash Job 140 Total direct labor Indirect labor Total labor cost 23,200 6,400 131,000 20,500 $ 151,500 $ 12,300 10,500 37,900 39,200 4,000 101,900 14,500 $ 128,400 Journal entry worksheet < 3 Record raw material purchases on credit. Note: Enter debits before credits. Transaction Record entry 4 Raw materials inventory Accounts payable General Journal 5 Clear entry 6 7 8 Debit 220,000 ***** Credit 11 220,000 View general journal >