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1 A force. F is applied to a lever - shaft assembly as shown in the figure. F= 534 N. Determine the scalar component of the moment at point 0 about line OB and the reaction at 0.
2 Two rectangular bars of 10-mm thickness are loaded as shown in the figure. If the average normal stress on plane AA is ISO MPa in compression determine
a. The force Ft
b. The average normal and shear stresses on plane BB.
Given that an activity's normal time and cost are 10 days and $400 and its crash time and cost are 5 days and $800, what is the activity's slope?
A rigid vessel of capacity 0.6 m3 contains dry saturated steam at 4.0 bar. The vessel is cooled until the pressure is reduced to 2.0 bar, Calculate; a) the mass of steam in the vessel.
The kite cable makes an angle of 25 degrees with the horizontal. The velocity of the wind is 30 miles/hour. Neglect ship wave drag.
Why is it appropriate to take velocity measurements at several diameters downstream of the fan?
Midrange and amplitude components, A shaft is subjected to a completely reversed bending stress such that Xmax=40kpsi and Xmin=-40kpsi
the tank has a 180mm diameter and 12 mm wall thickness. knowing that the tank contains compressed air under a pressure of 8 Mpa, determine the magnitude t of applied torque for which the maximum normal stress in tank is 75 Mpa.
The tapered member is fixed connected at its ends A and B and is subjected to a load P = 7 kip at x =30in. Determine the reactions at the supports. The material is 2in. thick and is made from 2014-T6 aluminum (Eal = 10,600ksi).
Saturated water vapor at 200oC is isothermally condensed to a saturated liquid in a piston-cylinder device. Calculate the heat transfer and the work done during this process in kJ/kg.
a 1.5 ton crate is hoisted by three steel wires. Each wire is 1/4 in in diameter and each wire carries one-thired of the load. Determine the stress in each of the wires.
A 0.4 W cylindrical electronic component with a diameter of 0.3 cm and length 1.8 cm is mounted horizontally on a circuit board. To cool the component air is flowing across the board at a velocity of 150 m/min. If the air temperature is T∞= 45°C, ..
Determine the COP of the heat pump that applies energy to a house at a rate of 4500kj/h for each kW of electric power it draws. Also, determine the rate of the energy absorption from the outdoor air.
what is the cooling temperature range obtained by thermoelectric refrigeration?
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