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Given the excitations x[n] and the impulse responses h[n], find closed form expressions for and graph the system responses y[n] x[n] = u[n], h[n]=(4/7)δ[n]-(-3/4)nu[n]
The Per-cent impedance of a single-phase electric load is 2.5. The base power is 100KVA, and the base voltage is 12.47KV. a find the per-unit impedance of the load if 400KVA and 20 KV are selected as
Consider 4 point charges of 10nC each located at A(1,0,0), B(-1,0,0), C(0,1,0) and D (0,-1,0) in free space. Find the total force F(not field) on the charge A.
If the U.S. consumes 10 Quads each year by burning gasoline for automobiles, and if this energy usage is spread evenly across 8760 hours in a year, what is the equivalent continuous flow of power in
Sketch the baseband signals for the two users when user 1 sends the bits 011, and user 2 sends the bits 101. Add the signals for the first bit only, and show that the output of the correlator for us
If gasoline has a 120,000 Btu/gal energy content, and an average tank fill up requires 15 gallons over a 5 minute period, what is the equivalent energy flow rate (or power) in Megawatts in chemical
Assume you are standing atop the Engineering Research Center, holding a ketchup-filled water balloon. The dean is walking by in a bright, clean white hat, soon to arrive right underneath your perch.
Derive a minimum cost realization of the four varible function that is equal to 1 if exactly two or exactly three of its variables are equal to 1; otherwise it is equal to 0. find the minimum cost S
Create a complete C++ program that prompts the user to enter his or her height in inches and outputs the following: Output "Height is six feet or more." when the user's height is 6 feet or more. Out
A program has a char variable fruit that has been assigned a value. Write a switch statement that outputs "Apple" if the variable contains lower or upper case 'a', "Banana" if it contains lower or u
A Motorola 68000 microprocessor-based data acquisition system incorporates memory ( EPROMS and SRAMS), an Analog-to-Digital Converter (A/D), a Centronics Parallel Printer, and a very simple I/I Devi
A dielectric rod of radius 10mm extends along the z axis from z=0 to z=10m. The polarization of the rod is P = [2z^2+ 10] az (az ==> is towards the z component in other words its the the unit vec
The initial voltage across the capacitor is 5V and the initial current through the inductor is 100 mA. A switch is thrown at t=0 such that the circuit is connected in parallel with a 50 mA independe
A three-phase ,600MVA,13.8KV Ac generator has a synchronous reactance of 2.0 per unit. The generator is connected to a system for which specified base fare 100MVA and 345KV.
A single-phase source is connected to an electric load. The load draws a 0.6 oer-unit current at 1.10 per-unit voltage while taking real power of 0.5 per-unit at a lagging power factor. Choose a bas
Suppose that OFDM is used with 15 kHz subchannels. (Two subchannels are used as guard channels on either side of the band.) Specify an OFDM symbol rate and modulation format for each subchannel that
A field technician measures the signal level at the output of a cable amplifier as 42.5 dBm, and measures the input to the same amplifier as 24.8 dBm. What is the gain of the amplifier
The heavy duty battery can provide 9A for 4 hours period of operation each night. Design a parallel set of lights (select the maximum number of lights) when the resistance of each bulb is 12
a- The adjustability of the potentiometer can be used to obtain an adjustable output voltage b- Both power supplies must be used so that the adjustable voltage can have both positive and negative valu
Suppose that you wish to offer a voice over IP wireless service. The target packet error rate (or drop rate) is 10^3 and you determine that if the signal is confined to within a coherence band, abou
Due to the current, the temperature of the wire is raised by T in atime t. A number N of similar cells is now connected in series with a wire of the samematerial and cross-section but of length 2L.
In an electricity experiment, it was observed that as the potential difference in volts across a thin platinum wire increases the current in amperes changes as follows: (V,I)=(0,0), (1.0,0.112), (3.
A linear circuit has a capacitance of 1.0 mF and an inductor of 1.0 µH. If the frequency response of the voltage gain should stay the same and the capacitor is scaled to 70 µF, what shou