In the atom bomb dropped by Americans in 1945 on Nagasaki, Japan, the fissionable material used wasA. Helium 4B. Plutonium 239C. Uranium 235D. Uranium 233

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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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