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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)
When you arrive at Duke's Dude Ranch, you are greeted by the large wooden sign shown. The left end of the sign is held in place by a bolt and the right end is tied to a rope that
Binomial distribution: Let X follow a binomial distribution with parameters n = 4 and p = 0.5. Tabulate P ( ¦X - μ¦ ≥ k ) and σ 2 /k 2 for k = 1,2,3,4,5 and verify that Cheby
Magnitude of a couple: So l.: For system, magnitude of couple is equal to algebraic sum of the moment about any point If the system reduces to couple, the resultant forc
Q. What is Erosion Loss? Additional metal thickness must be added in specific locations where metal loss is expected, due to stream flow that is of high velocity, or is abrasiv
Brazing Vs Welding Following are the differences between brazing and welding. (i) In brazing, the joint surfaces are not raised to fusion point (or melted) and the joint is
What are the Special Considerations in Planning The dimensions of the foundation should be such that for low-speed machines (operating speed less than 500 rpm) the natural fre
What are the laws of sold friction
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Schedule Evaluation Each continuations of a partial schedule that are produced in step 1 are ranked as per to their respective cost function. This cost function might be dissim
Two Possible Materials for Casing Two possible materials for the casing would be a. Polypropylene or b. An aluminium 1/3 per cent silicon-casting alloy (LM6). Conclu
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