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A tidal energy system has an average tidal range of 5 m and a basin area of 21.5km^2. The system is designed to generate power during both incoming and outgoing tides. The seawater density 1025kg/m^3, and the tidal period is about 12.5 hours.(a)Determine the maximum average tidal power at the site?(b). If the overall efficiency of the plant is 30%, find the annual electric energy produced?
Transmission line A coaxial transmission line has characteristic impedance Z0 = 50 ohms and has length L = 200 m and phase velocity vp = 2.0e8 m/s. The end at x = 0 is terminated with Rs = 50 ohms and the end at x = L is terminated with RL = 75 oh..
a) Given that the refractive index of water is about 1.33, what is the polarization angle for light traveling in air and reflected from the surface of water b) Consider a diver in sea pointing a flashlight towards the surface of the water.
(a) Evaluate the line integral of H about the rectangular path P1(2,3,4) to P2(4,3,4) to P3(4,3,1) to P4(2,3,1) to P1 given H = 3z ax - 2x3 az A/m. (b) Determine the quotient of the closed line integral and the area enclosed by the path as an appro..
When fed from a signal source with a peak amplitude of 0.1v and a source resistance of 20k , the peak amplitude v(pi)is 5mv. specify Re and bias current Ic. The BJT has beta =100. If the total resistance in the collector is 5 k,
In a 60-HZ, 208 V (line-line, rms), 5-kW motor, R'r = 0.45Ω and X'tr = 0.83Ω. The rated torque is developed at the slip s = 0.04. Assuming that the motor is supplied with rated voltages and is delivering the rated torque,
x[n]=cos(n*7pi/16)+cos(n*9*pi/16) a)Find the FS coefficients of x[n]. b)Obtain the DTFT of x[n] using the coefficients. c) Use Matlab, compute 25 seconds of the discrete-time signal x[n] using an appropiate sample period Ts.
A silicon diode has a doping profile such that ND = ax3. What is the depth of the junction assuming the p side is uniformly doped with NA per cubic cm. Assume the x origin is at an ideal ohmic contact on the n side of the diode.
Design a circuit that provides a relationship between output voltage Vo and input voltage Vs such that Vo=12*Vs -10. Two opamps, a 6-V battery, and several resistors are available.
All FSMs have an initial state and the FSM must be forced in to that initial state prior to processing any data inputs. Suppose you want to implement a 5-state FSM in a PAL16R4. Briefly describe how you would force the FSM into its initial state.
Suppose station A and B are interconnected through two parallel unreliable links, where each link has a failure probability of 0.1. Calculate the average seconds per day when A and B lose communication.
Consider a step-down transformer with 15 turns in the primary and 6 turns in the secondary windings.Calculate the input impedance of this transformer loaded to an 8 O resistor, assuming that series resistances of the windings are negligible.
Assuming that the energy gap does not change with temperature, calculate the intrinsic electron concentration at the two temperatures. Look up the data for silicon that you need. Give your answer in carriers per cm cubed.
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