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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)
Railway Station: Types of Stations There are the following types of stations: (a) Terminal stations, Howrah station in Kolkata and Mumbai Central being good exampl
Question 1 For an equilibrium cooled alloy of 92%D/8%C, which of the above diagrams best represents the microstructure at 0°C? Question 2 For an equilibrium cooled allo
Find the minimum weight to keep equilibrium: A belt supports the two weights W 1 an d W 2 over a pulley as shown in the figure given below. If W 1 = 1000N, fi
AA steam power plant operates on a reheat Rankine cycle. Steam enters the high-pressure turbine at a pressure of 12.5 MPa and temperature of 550 oC at a rate of 15 kg/s. It leaves
Argon Argon is approximately one and one third times as heavy as air and ten times heavier than helium. Argon, after leaving the torch nozzle, forms a blanket over the weld
During a test on a Lister engine in a thermal laboratory, following parameters were measured; crank shaft speed=1,750rpm Load on dynamometer=220N Radius of dynamometer=1.5m Fuel co
Q. Heat Exchangers - air-conditioning guidelines? Location, size and capacity clearly indicated. Control valves indicated. Space for tube removal, keep space clear of pipes, va
(a) What do you mean by machinibility ? Discuss the factors which come into play while evaluating the machinability of any metal. Also describe machinability index. (b) Brass co
How would you say environmental studies are multidisciplinary nature?
A ball is thrown from a point with a speed V at an angle of projection θ . From the same point and at the same instant, a person starts running with a constant speed V/2 to catc
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