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The temperature of water in a 25 gallon water heater is supposed to be raised from 60 deg F to 125 deg F. Compare the cost of using electricity and natural gas to heat the water.
A four-input summing amplifier has all input resistors at 10 k and the feedback resistor equal to 2.2 k. If the input voltages are all equal to 2 V, what is the output voltage
A 1.0-cm diameter pipe widens to 2.0 cm then narrows to 5.0 mm. Liquid flows though the first segment at a speed of 4.0 m/s. What is the speed of the liquid in the second and third segments of pipe
A 0.2 kg plastic cart and 20 kg lead cart both roll without friction on a horizontal surface. Equal forces are used to push both carts forward a distance of 1 m, starting from rest. Is the kinetic e
How fast, in rpm, would a 100 g, 50-cm diameter beach ball have to spin to have an angular momentum of 0.10 kg m^2/s
A highway curve of radius 500 m is designed for traffic moving at a speed of 90 km/hr. What is the correct banking angle of the road
A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 2.00 cm below the aim point. A. What was the bullet's flight time B. What was the bullet's speed as it left the barr
A pinecone falls straight down from a pine tree growing on a 20 degree slope. The pinecone hits the ground with a speed of 10 m/s. What are the components of the pinecone's impact velocity: a. paral
A tire is rolling along a road, without slipping, with a velocity v. A piece of tape is attached to the tire. When the tape is opposite the road (at the top of the tire), its velocity with respect t
A 1000.0 kg car is moving at 15 km/h. If a 2000.0 kg truck has 18 times the kinetic energy of the car, how fast is the truck moving in km/h
For loads causing more than 1 V to appear across the generator, the output current is no longer assured but will be reduced by some unknown amount. This circuit limitation, occurring, for example, a
What is the vector address of a reset interrupt in the MC9S12C32 microcontroller. In the MC9S12DG256 microcontroller, the address range 0xFFFC - 0xFFFD in the interrupt vector table is assigne
A linear-phase FIR filter should be designed with the ideal magnitude response shown in the following figure. The lower cutoff frequency, fL , is 1,200 Hz, and higher cutoff frequency, fH , is 2,200
Design a simple current divider that will reduce the current provided to a 1k Ohm load to 20% of that available from the source.
Design a circuit that provides a voltage gain of + 3. Draw the circuit schematic identifying supply voltages and show your work on component selection.
There is a damping coefficient of 18 lbs(ft./s). A weight of 96.6 pounds is attached to the spring, moved to 5 ft. above the equilibrium point and released with an initial velocity of 45 ft./s. Do n
Consider a 1-D semiconductor system when we have a perfect balence of drift and diffusion of holes. that is the total Jp=Jp, diffusion +Jp, drift = 0. P(x=x1)=p1, P(x=x2)=p2. find the potential drop
A n-type Si wafer is doped with Nd=1e15/cm^3, find the level of acceptor doping we need to convert the wafer from n-type to p-type, with a target hole density p=5e15/cm^3. also ni = 1e10/cm^3
what are the advantages and disadvantages of using PLDs, including FPGAs, as compared to using discreet logic-integrated circuit chips
a.) Write signals as the real part of the sum if rotating phasors. b) sum of the counter-rotating phasors c.) Plot the single sided amplitude and phase spectra for this signal d.) plot the double-si
A school has 100 lockers and 100 students. All lockers are closed on the first day of school. As the students enter, the first student, denoted by S1, opens every locker. Then the second student, S2
Gaussian white noise, perfectly band-limited to 0-10MHz, is passed through a perfectly rectangular filter of bandwidth 18 kHz, gain 3 dB, and center frequency 455 kHz. If the RMS voltage of the inpu
A designer searches for a simple circuit to provide one-third of a signal current I to a load resistance R. Suggest a solution using one resistor. What must its value be. What is the input resistanc
A pressure sensor covers a range of 0-500 psi with 2.5 mV/psi. The sensor is input to an ADC with a voltage range of 0 to 5 V. What is the value of the feedback resistor required for a non-inverting
a voltage divider is required to produce a 5.5V output from a 12V source. if one of the resistor values is 1.0k, what value is required for the second resistor so that the voltage across the 1.0k re