If sap bubbles of different radii are in communication with each other(a) Air flow from the larger bubble into the smaller one until the two bubbles are of equal size(b) The sizes of the bubbles remain unchanged.(c) Air flows from the smaller into the larger on and lager bubble grows at the expense of the smaller one(d) Air flows from the larger into the smaller one becomes equal to that of the larger one and the large one equal to that of the smaller one.

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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