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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)
Do not round intermediate calculations; however for display purposes report intermediate steps rounded to four significant figures. Give your final answer(s) to three significant f
Evaluate the specific enthalpy - thermodynamics: Steam is being generated in a boiler at a pressure of 15.25 bar. Calculate the specific enthalpy when ( i ) Steam i
why is physical properties of materials important in design and for industrial application?
The end plate of a tube is made from 4mm thick steel plate as seen in the figure below. If a 30mm diameter rod welded to the plate is subjected to a force of 10kN, what would be th
How are footings described and introduced properly? The selection of different types of footings and the need for reinforcing the same are discussed in this unit. Methods of de
three indications of centrifugal pump cavitating
There are various refrigeration systems employing various methods. State any seven (7) refrigeration systems, mention the method(s) employed to attain low temperatures, and state a
Find out the forces in members: A braced support ABC is loaded as illustrated. Find out the forces in members AB, BC, BD and AD by the method of joints. Check out the results
Determine the moment of resistance of the flitched beam: A flitched beam consists of a wooden beam of width 120 mm & depth 250 mm & mild steel plates of thickness 10 mm & widt
Consider the U-shaped curved beam shown below (with rectangular cross-section and thickness h ), which is loaded by force P as indicated. A free-body diagram reveals that a mome
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