Net Present Worth analysis
How do you calculate NPV for a model with single payment compound amount scenario.
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Unanswered Posts
Need this badly today
What work is done on a level track in bringing the velocity of a train weighing 200metric tons from zero to 45 kph, if the frictional resistance at any velocity is 45N/ton, and if the change in speed is accomplished in length of 1000m? (Ans. 26780.95 KN/m)
C. If the track were a 1% upgrade, what would be the additional work to be done?
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Maclaurins Series
Help please..
Finding the Maclaurins of:
ln tanx
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Ceva’s Theorem Is More Than a Formula for Concurrency
In triangle geometry, one of the most efficient ways to test whether three cevians are concurrent is Ceva’s Theorem.
Let D, E, F lie on sides BC, CA, AB respectively of triangle ABC. Then lines AD, BE, and CF are concurrent if and only if
(BD/DC) * (CE/EA) * (AF/FB) = 1.
What I find interesting is that many students learn this as a “contest trick,” but it is actually a very natural statement. The theorem says that concurrency is encoded by a balance condition on the three side partitions.
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Engineering Economy
Juan plans to raise a new building of 1 million. He raise the building by issuing 10%, 20 yr bond that would pay one hundred fifty thousand interest per year an repay the amount of maturity he can least it for Php 140,000 per year. First payment being due one year from now. The building has an expected life of 20 yrs. ignoring effects on income tax, what is the difference between buying the building and leasing it?
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Differential Equation
(xy + (y/x) + (3/x) -2) dy + y2 dx = 2(1+(y/x))dx
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BES 5
A structural steel column with Fy = 250 MPa
having an unbraced length of 3m is to carry a total axial load of 1800 kN. Which of the following sections is most economical (lightest ) for the given loads. The comumn is hinged at both ends.
Section A: Area = 13,800mm2 Ix= 293.63 x106mm4Iy= 67.59 x 106mm4
SectionB: Area = 11,550 mm2 Ix=177.04 x 106mm4Iy=39.14x 106mm4
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Algebra
A company has a certain number of machines of equal capacity that produced a total of 180 pieces each working day. If two machines breakdown, the workload of the remaining machines is increased by three pices per day to maintain production. Find the number of machines?
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differential equation: Show that if f and f' are continuous on a ≤ x ≤ b then f and f' are linearly independent on a ≤ x ≤ b
Show that if f and f' are continuous on a ≤ x ≤ b and f(x) is not zero for all x on a ≤ x ≤ b,
then f and xf are linearly independent on a ≤ x ≤ b.
More Topics on Dynamics
Please upload more examples and answers on Dynamics sirs maam Thanks in advance
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Recent comments
Max. shear at A = 12.73…
is it not…