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A CG amplifier when fed with a signal source having Rsig = 200 ohms is found to have an overall voltage gain of 10V/V. When a 200 ohm resistance is added in series with the signal generator the over
A dynamite blast at a quarry launches a rock straight upward, and 1.6 s later it is rising at a rate of 14 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch a
In a right triangle, the square of the length of one side is equal to the sum of the squares of the lengths of the other two sides. Stephanie has the integer lengths of three sides of a triangle and
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.70 s, and the velocity of the car decreases to + 4.71 m/s. The car's deceleration has a magnitude of 3.41
Two soccer players start from rest, 34 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.42 m/s2. The second player's acce
Suppose a car is traveling at +23.2 m/s, and the driver sees a traffic light turn red. After 0.563 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 7.00 m
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 9.38 m/s when going down a slope for 3.89 s (b) How far does the skier travel in this tim
A hot-air balloon is rising upward with a constant speed of 3.86 m/s. When the balloon is 9.27 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much
find the new internal emf Ei and the power angle Delta. c) While delivering the reduced line current of part b, the mechanical power input and the excitation are further adjusted so that the machine
A jogger accelerates from rest to 3.75 m/s in 3.58 s. A car accelerates from 16.7 to 31.6 m/s also in 3.58 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of
A three-phase round-rotor synchronous generator, rated 10kV, 50MVA, has armature resistance R of .01 per unit and synchronous reactance of Xd of 1.65 per unit. The machine operates on a 10-kV infini
An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 10.5 m/s in 3.60 s. (a) What is the magnitude and direction of the bird's acceleration
Fibonacci numbers are the numbers in a sequence in which the first two elements are 0 and 1 and the value of each subsequent element is the sum of the previous two elements. Write a MATLAB program t
A power amplifier has a gain of 20 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
A railway train is fitted with three engine/transmission units that can be assumed to exhibit a constant hazard with a mean life of 200 h. In a 15 h working day, calculate the probability of a train
For a device with a failure probability of 0.02 when subjected to a specific test environment, use the binomial distribution to calculate the probabilities that a test sample of 25 devices will cont
A fully enclosed cylindrical fuel tank with a diameter of 6.00 meters and a height of 8.00 meters has a manufacturing tolerance of +/- 0.04 meters for each of these dimensions. What is the minimum p
If 15 newtons of force is applied to a surface and the pressure is measured as 4,000 Pascals, what is the area of the surface in units of square meters
The bandwidth of a series resonant circuit is 400 Hz. (a) If the resonant frequency is 4000 Hz, find Q. (b) If R = 10?, what is the value of XL at resonance (c) Find the inductance L and capacitance
A 300 ohms resistor is connected across the 300 ohms antenna input of a television receiver. The bandwidth of the receiver is 6 MHz, and the resistor is at room temperature (20 degrees C). Find the
Assume that a receiver has a first amplifier stage with a 5K-ohm input resistance, a gain of 300, an input audio signal of 20V, and an operating temperature of 27oC. When the amplifier is operating
Design a 3-input CMOS OR-gate using MOSFETs on the CD4007 chip. Make certain that the power dissipation is zero when the output is both logic 1 and logic 0. As an added challenge, design the OR gate
two identical CE amplifiers are connected in cascade. The first stage is fed with a source eVsig having a resistance Rsig= 10k ohms. A load resistance Rl=10K ohms and is connected to the collector o
Consider DSB used to transmit an audio signal of 6kHz on a GSM phone with a carrier around 879MHz. By what factor is the Nyquist rate greater if you sample the DSB signal directly rather than the ba
Suppose a 15-uF capacitor is charged to 500 V. Determine the stored charge and energy. If this capacitor is discharged to 0 V in a time interval of 4 ?s, find the average power delivered by the capa