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Solve Differential Equation: 16y”-40y’+25y=0

y'(pi/2)=3

Assume the population of fish grows exponentially. A pound is stocked initially with 500 fish. After 6 months, there are 1000 fish in the pond. The owner will allow his friends and neighbors to fish on his pond after the fish population reaches 10,000. When… Read More »Statistical Problems with Differential Equations

In a circuit, the resistance is 6 omega and inductance is 1/4 H. The battery gives a constant voltage of 12 V and the switch is closed when t=0, so the current starts with I (0) = 0. Find I (t).

Different Electronic Components and their Functions found at Home SWITCH SPST ( SINGLE POLE, SINGLE THROW) SWITCHCLASSIFICATIONMethod of actuation: Mechanical switch. It must be touched to activate.Number of poles and throws: SPST ( Single pole, single throw). This is an ON/OFF switch, when the switch… Read More »Different Electronic Components and their Functions found at Home

The sharpest bend that can be placed in a piece of metal without critically weakening the part is called the MINIMUM RADIUS OF BEND Bend radius on sheet metal is INSIDE RADIUS The setback is THE DISTANCE FROM THE MOLD POINT TO THE BEND TANGENT… Read More »Aircraft Construction and Materials: Reviewer 2

Major Structural Components Wings Fuselage Powerplant Empennage (Tail Section) Undercarriage (Landing Gear) WINGS Wing Position Low Wing Mid Wing High Wing Wing Shape Rectangular Tapered Swept (Slight, Moderate, Great, and Forward Sweep Wing) Delta (Simple and Complex Delta Wing) Wing Number Monoplane Biplane / Multiple… Read More »Major Structural Components

AIRCRAFT BASIC CONSTRUCTION  A circumferential member that opposes hoop stress and provide shape and form to the fuselage SKIN FRAME/FORMER BULKHEAD A __ reduces aerodynamic drag caused by air spilling off of the wing tip WINGLET SPOILER STABILIZER In addition to two main wheels, a… Read More »Aircraft Construction and Materials Reviewer

Aircraft is defined as any machine that can derive support in the atmosphere from the  reactions of the air other than the reactions of the air against the earth’s surface. MAJOR CATEGORIES OF AIRCRAFT I. Fixed-wing Aircraft  a. Major Components of a Fixed-wing Aircraft  i.… Read More »Aircraft Basic  Construction