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A reversible power cycle receives energy H Q from a reservoir at temperature H T and rejects C Q to a reservoir at temperature C T. The work developed by the power cycle is used to drive a reversible heat pump that removes energy 'C Q from a reservoir at temperature 'C T and rejects energy 'H Q to a reservoir at temperature H T.
(i) Develop an expression for the ration ' / H H Q Q in terms of the temperatures of the four reservoirs.
(ii) What must be the relationship of the temperatures ' , , ' ' H C C H T T T and T for' / H H Q Q to exceed a value of unity?
A closed magnetic circuit of cast steel have a 6cm long path of cross-sectional area 1 cm 2 and a 2 cm path of cross-sectional area 0.5cm 2 . A coil of 200 turns is wound arou
can i get assistance here with questions involving the design of a permanent magnet magnetic bearing?
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Sclera: It is an outer most, thick, impermeable to light. It is more convex and it's front part is transparent is known as Cornea.
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9.8-g lead bullet with a muzzle velocity of 3.90 x 10 2 m/s is stopped by a wooden block. What is the change in temperature of the bullet if one-fourth of its original kinetic
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