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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 1675Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?
1345How LVDT position transmitter works on DC supply(24vdc) from DCS, whereas transformer operates on AC supply? pls help..
1 2006What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?
1369Question 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 1870What are formula we can apply to determine the HT/LT current of 11KV/433V transformer except KVA/LV×√3. ?
2 31056
if we give you the job AS A PETROLEUM ENGINEER WHAT WILL YOU DO(that is extraordinary) for our company
For what purpose bedding is used under storm water drains, explain?
What id difference between power and energy?
Pressure tx shows 1 mbar but we need 1000 mbar at this process condition .. how can we sort it out .
why don't we use the generator as a motor? and what will happen?
State the advantages of dual slope adc:
What electronics are involved to build a device like a guitar tuner where you press a button to get a specific tone?
11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?
HOW TO REDUCE POWER PLANT AUXILIARY POWER CONSUMPTION?
what is relay what is protection & contact multiplying relays where it is used function in brief
What is George phenomena to start the synchronus machine?
how we can decide that what value of ht line will come to any commercial building? (ans except According to the building load)
I am 2012 pass out b tech student(cse). i have recently started software manual testing class. Is this field is benefitial for me in future?
Where is iron ferite used?
What is power factor why we should maintain the power factor unless what will happen
