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Question 65 – A differential equation is given as y” + 5y’ + 6y = 0, y(0) = 2 and y’(0) = 3. By using Laplace transform, an engineer has correctly produced the equation L {y} = (2s + 13) / [(s + 2)(s + 3)] = A / (s + 2) + B (s + 3). (a) Find the values of A and B. (b) The inversed Laplace transform of 1 / (s + a) is given by exp (-at) where a is a constant. If the statement : L {y} = 9 L { exp (-2t) } - 7 L { exp (-3t) } is correct, find the equation of y as a function of t as a solution to the differential equation stated in the beginning of this question. When L {d} = 9 L {b} - 7 L {c}, then d = 9b - 7c with b, c and d are unknowns.
1 2318Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?
1802How LVDT position transmitter works on DC supply(24vdc) from DCS, whereas transformer operates on AC supply? pls help..
1 2799What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?
1872Question 66 – The drag coefficient Cd = 0.05 and lift coefficient Cl = 0.4 for a levelled flow aircraft are measured. The velocity of the aircraft is v = 150 ft / s with its weight W = 2677.5 pound-force. (a) Find the value of the lift of the aircraft, L, when it is also its weight. (b) The drag of the aircraft, D = Cd M, L = Cl M. Find the value of D. (c) The power required is P = Dv. If 1 pound-force x (ft / s) = 1.356 W, find the value of P in the unit of Watt or W.
1 2592What are formula we can apply to determine the HT/LT current of 11KV/433V transformer except KVA/LV×√3. ?
2 37663
it is possible to check the fail safe condition in pressure transmitter. if possible how?
Why hydropower stations are preferred solution for meeting peak loads in grids?
Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used
how can i get the formula to find out the cable size if i know the load of main fuse protection.
CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??
What are the basic properties of signal flow graph?
What is the work of Bus cable, Power cable and Er cable in nokia flexi edge bts.
i m doing my 3rd yr with only 6 month left to complete it..within this 6 months which is the best nd useful oracle certification program should i do??pls help me out!!
Define seam finish?
one split ac how can told of this ac which Tr tell me us
What is the function of freewheeling diodes in controlled rectifier?
What are the various utilities of the process plant?
Can condensate control in a reboiler cause water hammer problems?
What is location update? Why do we need location update?
design of a dust collector?
