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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)
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A single jet pelton wheel runs at 300 rpm under a head of 510 m. the jet diameter is 200m, its deflection inside the bucket is 165 o and its relative velocity is reduced by 15% be
Characteristics of the secondary circuit The dimensions of the secondary circuit in secondary loop determine to a large extent, the performance of these machines. The secondary
Define the Ideal Surface Roughness The ideal surface roughness represents the best possible finish which may be obtained for a given tool shape and can only be approached if bu
Voltage: The voltage is the potential difference between two points. The current flows from higher potential to lower potential. Voltage is measured in volts (V). V = IR
National supply and national demand curves: 1. Explain why neighboring countries tend to trade extensively with each other. 2. Use Table 1.1 to find the five most open econ
A simple band brake performs on a drum of 600mm in diameter that is running at 200 r.p.m. The coefficient of friction is 0.25. The brake band has a contact at 270 o one end is fas
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