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Electrical Engineering Questions and Answers January 20, 2020

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According to Poiseuilles laws, the velocity V of blood is given by Vk (R ) where R is the radius of the blood vessel, r is the distance of a layer of blood flow from the center of the vessel, and k is a constant. A patient takes blood vessel dilation medication so that her blood velocity is modeled by Poiseuilles law with k 453.4. Find the rate of

10.3 An EM wave in free space is described by H 0.4 cos(10t By) AM 3D Determine (a) the angular frequency w, (b) the wave number B, (c) the wavelengur (d) the direction of wave propagation, (e) the value of H(2, 3, 4, 10 ns).

Two wattmeters are being used to monitor real and reactive power of a balanced threephase deltaconnected load connected to a balanced threephase supply as shown below. The following measurements have been recorded Pw1 643 W and Pw2 356 W. 3D a) What is the real and reactive power of this load b) Assuming the load contains series connected RL

Find the area of the surface z y x lying over the triangle D in the xy plane with vertices (0, 0), (0, 2), and (2, 2). Select one O O a. b. C. d. e. 1832 232 12 10321 16 2032 12 1232 8 1 1 1432 232 8
Find the area of the surface z = y2 + x lying over the triangle D in the xy- plane with vertices (0, 0), (0, 2), and (2, 2).

The revenue function R(x) and the cost function C(x) for a particular product are given. These functions are valid only for the specified range of values. Find the number of units that must be produced to break even. R(x) 200x x C(x) 5x 4250 0sxs 100 The manufacturer must produce units to break even.

1. Find Vo in the circuit in Fig. H31. 10 k w ww 100 k 20 kn 30 k 10 V Va 20 k 12V 340 kn

Determine the 1t and 2nd derivatives of the following function, using symbolic functions f (x) y cos (2x) sin (x) 48. (5 pts) Perform the integration, using symbolic functions S(x x) dx