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Question: A flat-plate airfoil is aligned along the x-axis with the origin at the leading edge and trailing edge at x = c. The plate is at an angle of incidence α to a free stream of air speed U. A vortex of strength 0v is located at (xv, yv). Show that the distribution k(x) of vorticity along the airfoil from x = 0 to x = c satisfies the integral equation
where x = x1 is a particular location on the chord of the airfoil. If xv = c/2 and yv = h >> xv, show that the additional increment of lift produced by the vortex (which can represent a nearby airfoil) is given approximately by
A hand-driven tire pump has a 2.50 cm diameter piston and a maximum stroke of 34.0 cm. What average force do you exert on the piston, neglecting friction and gravity
A 0.73-kg mass is hanging from a spring with spring constant 13 N/m. What is the resulting period of the oscillation
two resistors have resistances rsmaller and rlarger where rsmaller lt rlarger. when the resistors are connected in
You want to create an electric field at location. where would you place an electron to produce this filed at the origin
An uncharged 4.70*10^-6 F capacitor and an 8.00 *10^5 Omega resistor are placed in series with a 12.0 V battery. find the Maximum Current through the curcuit after the switch is closed
A hair dryer has a power rating of 1400 W at 110 V rms. Assume the hair dryer circuit contains only resistance. What is the rms current drawn by the hair dryer
An AC generator has 80 rectangular loops on its armature. Eachloop is 13 cm long and 6 cm wide. The armature rotates at 1500 rpmabout an axis parallel to the long side.
Joey weighs 77 lb and sits on a seesaw at a distance of 30 inches from the fulcrum. Jenny weighs 67 lb and sits on the opposite side of the seesaw at a distance of 48 inches from the fulcrum. how far away from the fulcrum should he sit
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
When a resistor is connected across the terminals of an ac generator (103 V) that has a fixed frequency, there is a current of 0.505 A in the resistor. find the impedance of the series combination
Assume that a lightning bolt can be represented by a long straight line of current. If 15.0 C of charge passes by in a time of 1.5 x 10-3 s, What is the magnitude of the magnetic field
What is Q1,max, the magnitude of the maximum charge on capacitor C1? What is Vbc(t1)= Vb - Vc, the voltage across the inductor at time t1 = 20.8 ms? Note that this voltage is a signed number.
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