The equation of a progressive wave is y = 4 sin (4pt – 0.04 x + p/3) where x is in meter and t is in second. The velocity of the wave is (A) 100p m/s (B) 50p m/s (C) 25p m/s (D) p m/s

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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