When a liquid rises inside a capillary tube, the weight of the liquid in the capillary tube is supported (a) Entirely by atmospheric pressure (b) Entirely by the force due to surface tension (c) Partly by the force due to surface tension and partly by atmospheric pressure (d) Entirely due to the upward component of the reaction (R) to the surface tension

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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