In a triangle ABC, let ?C =p/2 . If r is the inradius and R is the circumradius of the the triangle ABC, then 2 (r + R) equals

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consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

 

 

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