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f(X,y)=y'*inv(X)*y, dom f={(X,y)|X+x'>0}. is f convex? If not give a simple counterexample.I can proof convexity when X is restricted to Sn via its epigraph but I don't know how to explain the general convexity of f for any X. Any help would be appreciated.
Estimate the mass transfer area per unit volume (a) for this column, estimate the Hoy value for this column and calculate Noy and estimate the height of the column using your answer for Hoy
An earth station receive antenna has a sky component temperature of20 K, a ground component temperature of 15 K . What is the total antenna noise temperature [K]
A 2000 kVA, 4800-600V, 60 Hz, core type transformer operating at no load in the step down mode draws a magnetizing current equal to 2 percent rated current. The core has a mean length of 3.15meters, and operated at a flux density of 1.55 T.
A collimated light beam from a helium-neon laser at 632.8 nm wavelength impinges on a dielectric film of refractive index of 2.0 at an angle of 75 degrees to normal, with a polarization at 45 degrees to the plane of incidence.
In a bus 1-persistence CSMA/CD with Tp=50us and Tfr=120us, there are two stations, A and B. Both stations start sending frames to each other at the same time. Since the frames collide, each station tries to retransmit.
Concentric spherical conducting shells in free space of radii r1 = 0.00113 m and r2 = 0.00220 m have a potential difference of 20.0 V (let the inner shell be at 0 V and the outer shell be at 20.0 V).
The series combination of a 4=mu F and a 3mu F capacitor is in series with the parallel combination of a 2 mu F, a 1 ? mu F, and a C - mu F capacitor, (a) What is the maximum possible value for the equivalent capacitance of the five capacitors
A magnetic field of 2.0 T is applied to a bubble chamber to make the tracks of protons and other charged particles identifiable by the radius of the circles they move in. If a high-energy proton moves along an arc of a 3.3 cm circle
Use the map template to create a phone list for a department. Their should be 10 people in the department. The map will use the person's first name and telephone number. Enter individuals in an unsorted order and then list the persons based on the..
Find the input torque to the generator.If armature current and field current are kept constant, find the new value of the terminal voltage if the power factor is changed to 0.7 lagging.
In an AC generator the magnetic field is .05T, the number of loops is 12, the operating temperature is 90degC, the rotational speed is 50cps, the power factor is .96 leading and the are enclosed by one loop is 2 sqft.
1. Determine Laplace transform of (2-2e^-4t)u(t) 2. Determine if x(t) = 9cos(2t)+4sin(pi t) is periodic; if periodic, calculate the period. 3. Compute the inverse Laplace transform of X(s)= (s+2)/(s^2+ 7s + 12).
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