A thin uniform cylindrical shell, closed at both ends, is partially filled with water. It is floating vertically in water in half-submerged state. If ?C is the relative density of the material of the shell with respect to water, then the correct statement is that the shell is (A) more than half-filled if ?C is less than 0.5. (B) more than half-filled if ?C is more than 1.0. (C) half-filled if ?C is more than 0.5. (D) less than half-filled if ?C is less than 0.5.

in a physics laboratory a block x is balanced by a block Y of mass 200 kg,each are suspended from a balance of equal lever arms .the scale pan on X is at a height.H1=2 cm ,where as scale pan on Y is at height 1 cm above the floor.the error in weighing is (in gram)

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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