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Under the action of constant force, a 2kg block moves such that its position x as a function of time is given by X=t^3/3 ,where x in meters and t in sec , the workdone by force in first 2 seconds isA 26.6 jB 3.3 jC 16 jD 32 jSolution) v=dx/dt=t^2,a=dv/dt=2t,f(t)=ma(t),w=∫f(t)*v(t) dt (from x=0 to x=2 sec)
At a point in a rectangular block of elastic material under strain, there is a tensile stress of 50MPa on one plane and a compressive stress of 30 MPa on a plane at right angles. T
Convert the flow-rate from Am3/h to Sm3/h Consider a compressor (model ABC-Z4). The compressor has a suction pressure of 3 barg, and a discharge pressure of 6 barg. The inlet
Write an essay on air, water and soil-based heat pumps. Discuss the advantages and the disadvantages of each system. For each system identify the conditions under which that system
A long cylinder of radius 2 m hinged at point A is used as an automatic gate. When the water level reaches 15 m the gate automatically opens. Determine the magnitude of the net hyd
WELDING VARIABLES The following major process variable play an important role in shaping the weld bead and the resultant weld metal in submerged arc welding: a. Welding cu
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Ask question #Minimum 100 whow to detect the presence of 2nd group basic radicals ?ords accepted#
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What is Tube Drawing - cold drawing processes This kind of drawing is very similar to bar drawing process and in majority of cases it is accomplished by the use of a draw be
sensitivity of governors
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