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A solar energy collector produces a maximum temperature of 100°C. The collected energy is used in a cyclic heat engine that operates in a 5°C environment. Estimate the thermal efficiency if the engine operates at 40% of Carnot efficiency. How would the answer change if the collector were redesigned to focus the incoming solar radiation to enhance the maximum temperatures to 400°C.
a diagnostic test is designed to detect a cancer precursor enzyme that exists in 1 of every 1000 people. the test
The uniform slender bar AB has a mass of 8 kg and swings in a vertical plane about the pivot at A. If thett^ = 2 rad/s when theta = 30 degrees, compute the force suported by the pin at A at that instant
the path of a particle p is a liamcon. the motion of the partice is defined by the realtions rb2cospit and thetapit.
need a critical review journal paper about the different types of trucks gap and skirts and boat tailsabstractnotice
water flows into a volume that contains a sponge with a flow rate of 0.02 m3s. it exits the volume through two tubes
deformation measurements were made on a flat rock surface using 0.5000 m-long gauge lengths. the following observations
a constant-pressure balloon contains 1.5-lbm saturated water vapor at 15 psia. heat loss from the balloon causes all
a helix compression spring is manufactured using the following parametersod1.00id.790wire dia 0.105fo 40.49 lbf
a particle is moving along a straight line such that when it is at the origin it has a velocity of 8 ms part a if it
Define- hydraulic mean radius, hydraulic dept, section factor and most efficient dhannel cross section.
use the equations below. note that the direction is indicated by the sign in front of the equations.x 0.0571 m
an insulated piston-cylinder device contains 2kg of saturated liquid water with an electric resistance heater in the
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