A sample of potassium chromate, KCrO4, contains 40.3% K and 26.8% Cr. The mass percent of O in the sample would be:A. 4 x 16 = 64B. 40.3 + 26.8 = 67.1C. 100 - (40.3 + 26.8) = 23.9D. The mass of the sample is needed to finish the calculation.

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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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