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What is human egocentrism, what is its usual result, and how do we restrain it? List and describe at least three egocentric standards or tendencies we often use to justify our beliefs.
What is fair mindedness? Describe fair-mindedness as well its opposite. Define and describe three intellectual virtues. Describe three of the contrasts between natural and critical thinking.
Define and describe the three dimensions of thought. Describe at least three characteristics of a well-cultivated critical thinker.
Find the pitch diameter of the pinion. The pitch diameter of the gear. The output torque of the gear. The minimum length of the key used to attach the gear?
Determine: a) number of teeth on the small sprocket, b) number of teeth on the large sprocket, c) lubrication type required, d) the required length of chain (in inches) if the center distance is 20.
If the heat pump removes heat from outdoor air at -10 degree C, what is the maximum heat rate that can be supplied to the house?
Calculate the net work output [kJ/kg], the heat input in the boiler [kJ/kg] and the thermal efficiency of the cycle. Sketch the cycle on the T-s and h-s diagrams for water.
Estimate the vehicle's fuel economy rating in the units of miles per gallon. The engine has an efficiency of 10%-15% and the Gas has a Density of 680 kg/m^3.
Determine: 1) The Heat rejection in kJ. 2) the net work in kJ. 3) the thermal efficiency 4) the mean effective pressure in kPa.
Sketch a phasor diagram (not to scale). Calculate current phasors IR, IL and IT, the impedance ZRL, and the angle (theta).
Find a real-life case of static equilibriu with a distributed load that is of interest to you and is statically determinate provide a picture or neat sketch of the situation.
If the heat engine produce 950 kw of net power, what is the minimum heat rate that must be supplied by the high temperature reservoir?
If the flow in the hurricane outside of the hurricane's eye is approximate as a free vortex, determine the wind speeds at the location 20 mi, 30 mi, and 40 mi from the center of the storm.
Determine the molar mass (average molecular weight) of the gas stream, and the mole and mass fractions for each species.
What is the minimum pressure the tank has to be pumped up to reach sonic flow somewhere in the nozzle? At what location would this sonic flow occur?
Find the temperature of the gases at the nozzle exit plane, the pressure in the combustion area, and the thrust developed.
The work it produces drives a refrigerator which produces a refrigeration effect of 10kW. Both devices reject heat to a reservoir at 300K. Find the lowest possible temperature of the space cooled by
Assuming that air behaves like an ideal gas, calculate (a) The work produced by the turbine per unit mass of air flowing through it in kJ/kg; (b) The air pressure at the exit of the turbine in bar.
Calculate: (a) The amount of heat the pump captures from the ambient air over that period of time in kJ; (b) The coefficient of performance of the heat pump.
When loaded (the action is elastic), the 100 mm side measures 99.965 mm, and the length has increased 2.5 mm. Determine Poisson's ratio and Young's modulus for the material.
The rod is 4 ft long when t = 40 F and there is no comression in the springs(K=1000 LB/in). What is the force in the rod and the change in length when the temperature rises to 160 F?
What is the efficiency of the lagoon? The pond's efficiency depends on oxygen being always available for the microbes to use in degrading the wastewater organic carbon.
An angular velocityw=2.5rad/swhen it is released from rest at theta=90degrees. For the calculation, treat the door as a thin plate having a mass of 90kg.