Output Definition and 1000 Threads

Homework Statement During the power stroke in a four-stroke automobile engine, the piston is forced down as the mixture of combustion products and air undergoes an adiabatic expansion. Assume (1) the engine is running at 3400 cycles/min; (2) the gauge pressure immediately before the expansion...

Homework Statement The attached figure shows a simple voltage-divier connecting a dc voltage source to a variable resistive load. Design the voltage divider to provide a voltage of about 5V (+/- 10%) across the variable load. The load-current demand varies in the range of 0 to 5mA, and the...

I have simple 18 pole rotor, which I drive using another motor. I have 9 coils of 0.6 ohm resistance each, which generate open voltage of 1 V each. When I short circuit individual coils, I see current of 1.60 amp in each coil. All of these are randomly out of phase. I cannot group them as in...

Homework Statement http://i.imgur.com/VYPECuW.png?1 (f1: f2: f3: f1*f2: f1*f3: f2*f3: f1*f2*f3: is what's written near tables) I need to minimize the functions (sum of minterms: f1 0, 1, 2, 4, 5, 11, 15; f2 0, 2, 4, 13, 15; f3 0, 1, 3, 4, 5, 7, 13, 15) using K-tables... This is what they show...

Homework Statement A speaker emits sound waves in all directions, and at a distance of 28 m from it the intensity level is 73 db. What is the total power put out by the speaker, in watts? ( reference intensity I_{0} is 1.0 × 10-12 W/m2.) Homework Equations P= I*A I = I_{0}*10^{B/10} SA =...

Homework Statement FIGURE 5 shows a proportional plus derivative controller that has aproportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input waveform shown, if the input rises and falls at the rate of 4 units...

Hi. If you have a LTI system with an impulse response function ##h(t)## taking in an input ##x(t)##, why does its output ##y(t)## become ? I realize ##y(t)## not only depends on the instantaneous input ##x(t)##, but also on the lingering effects of previous inputs ##x(\tau)## with ##\tau <...

Homework Statement Basically, a wind turbine's connected to a car alternator. weight of turbine=72 kg length of blade-30 cm. What is required, is the amt of power this wind turbine will produce when the car (to which turbine is attached) is moving at: a) constant speed b) variable speed...

Homework Statement We have the circuit in the figure.I have to find the output graphically if the input is Vi=15sinwt. Homework Equations This type of exercise doesn't have any equations The Attempt at a Solution Heres the circuit http://i.imgur.com/ivixWzH.jpg For Vi<= -10 the diode is ON...

If I have a pump of 50psi and 2L/min flow rate and it is connected to a nozzle. The nozzle catalogue specs for example shows that : 40psi = 0.5L/min 50psi = 0.6L/min 60psi = 0.7L/min Is flow rate at the nozzle output 0.6L/min? Regardless of the pump flow rate, as long as pressure are same...

Hi guys I have problem, basically I want to measure the power output from a water wheel. so basically I measured the power output by connecting the pulley that attach on the shaft of the water wheel. then this pulley is connected to other pulley which sit on the shaft of the DC motor. this DC...

I've noticed that certain propane torches will have a seemingly linear relationship between their PSI and BTU/hr. IE, 18 PSI -> 220,000 BTU/hr. From this a person could calculate how much gas is being burned per sec/minute/hr. So, is there a general relationship/formula that I can use to...

Hi everyone! Fresh and new around here. I just started learning C++ and wrote a program yesterday to list all primes up-to an input n. It works just fine except for one problem. I tried listing all the primes up-to 100,000. Program completed in about 20 seconds, I scrolled up to the top but the...

Hello! I have a question about measurement of spectrum analyzer. I made some inductor by lithography, evaporator, and lift-off process, and tried to measure using spectrum analyzer. (The probing was GSG type) I swept the frequency from 100MHz to 5Ghz, and output power was monitored by...

Homework Statement A ##\small{105\!-\!kg}## basketball player crouches down ##\small{0.400\ m}## while waiting to jump. After exerting a force on the floor through this ##\small{0.400\ m}##, his feet leave the floor and his center of gravity rises ##\small{0.950\ m}## above its normal standing...

Hello, I don't understand how more loops in the AC generator create bigger voltage. I understand when we talk about magnetic flux how it happens (rate of change of surface that's penetrated by field lines), but there's also the explanation that says "if the magnetic field penetrates the paper...

Let: $$x_1=A\sin{\omega t}$$ $$x_2=\dot{x}_1=A\omega \cos{\omega t}$$ $$y=A\omega$$ We want to represent this system in a state space model. The state transition matrix read: $$A=\begin{bmatrix} 0 & 1 &\\ -\omega^2 & 0 \\ \end{bmatrix}$$ I am not sure what the output matrix will be like. Can we...

Homework Statement during a human heart beat, 20g of blood are pushed into the main arteries. This blood is accelerated from a speed of 0.20ms-1 to 0.34ms-1. For a heart pulsing at 70 beats per minute, calculate the average power of the heart pump. Homework Equations KE=1/2mv2 The Attempt at a...

Hi! Homework Statement a) Calculate and sketch amplitude spectrum of u(t), b) u(t) is input signal for linear time invariant system whose transfer function H(jw) is shown. Calculate output signal uo(t) Homework EquationsThe Attempt at a Solution I completed task a), I got...

Homework Statement a 4 kva, 230/115 volt, 400 HZ, single phase transformer originally designed for use in air crafts, is available in a laboratory for obtaining 115 volt supply from standard 230 volt,50 HZ mains if overloading of the device is not permitted then net kva output is...Homework...

I would like to raise a question about GDP deflator. In my macroeconomics textbook, there is a statement like this: "GDP deflator gives the average price of output". I wonder why the deflator will give the average price as it only measure the ratio between nominal GDP and real GDP... Thanks for...

hello experts I want to write input and output for microcontroller in verilog langugae (8051) I have tried to write code Module mcu (clk, rst, en, p_in, p_out, t_in, t_out, i_in,i_out, rx_in, tx_out ,a0,a1,a2,d0,d1,d2,d3,d4,d5,d6,d7,a,b,s0,s1,s2,f,...etc); Rst= reset input Clk= clock...

Hello everyone, I've been trying to figure out how i can have two different inputs that are switchable from one to another that drive a single output. However i don't want the inputs to drive each other, and also want the mechanism to be compact in size and fairly lightweight. So how can i do...

Homework Statement We have two different set ups: a) A 200K brick in a 300K environment b) A 300K brick in a 200K environment From which one of these can you extract more work? Assume equal mass and heat capacity. Homework Equations Efficiency - η=\frac{T_H - T_L}{T_H} and: W = ΔQ => W≤ Q_H *...

In the given circuit we have to find the output voltage , the voltage drop across resistance RL (RL = 10KΩ) and the current through the zener diode having zener voltage VZ = 50V By this question I want to be clear about the way to solve circuits with zener diode...please explain the...

Hi, I'm trying to figure out why the output voltage waveform of this circuit would not include a DC offset of E. My understanding is that D1 becomes forward biased when Vs > E, and so that is when it should conduct. Every waveform drawing I've seen, on the other hand, begins conduction at 0...

Hi. I was wondering if there is anything wrong with running LDO Voltage Regulators at max current output for extended periods of time (>12 hrs). The reason I ask is because I have a application where I have to drive a load that is less than 5Ω with a constant current of 500mA at 5V. I could use...

Homework Statement The maximum torque output from the engine of a new experimental car of mass m is τ . The maximum rotational speed of the engine is ω. The engine is designed to provide a constant power output P. The engine is connected to the wheels via a perfect transmission that can...

Hey, I've begun going through a book called "An introduction to geophysical exploration" by Phillip Kearey and Michael Brooks and I've come across a problem I can't for the life of me see how they got their answer. Essentially, given an input function gi (i = 1,2... m), and a convolution...

Hi! Here is my task: a) Calculate and sketch Iout=f(Vc2), for 0<Vc2<1.5V. (neglect Early effect) b) calculate output resistance for Vc2=Vc1. BJT's Q1 and Q2 are in forward active mode, have identical characteristics and same temperature. MOSFET M3 is in saturation. Iin=10μA, Vt=25mV...

I have a 3hp motor, with a torque of 110.85 lb*in. a gear box with a max torque of 6286 lb*in. gear box ratio is 57.64:1 I have gears attached to the gearbox shaft with a gear reduction of 3.375:1. My new gear ratio should be 194.53:1 right?... which would make my output torque approx...

1. How could you measure your output power developed while pushing a car? 2. If you developed a certain amount of power running up let's say 2 flights of stairs, could you develop the same power if you ran up twice as many stairs? 3. What factors affect a persons output power running...

I want to output a specific wavelength of infrared light, I believe the wavelength was 9.25nm, how hard would that be and how would I proceed?

Homework Statement Find output voltage of differential amplifier having differential gain of 100 and common mode gain 0.1 if input voltages are v1=2+0.55sinwt and v2=0.5-0.005sinwt Homework Equations The Attempt at a Solution well, from sedra smith book i found the formula for...

Hi there, I am trying to achieve a particular set of graphs based on duffing equation graphs which you can find here: It shows a graph which is Amplitude (X(1)) vs. Omega graph. With the code that I have deduced and the formula used, I am able to see that X(1) is varying at every step...

Homework Statement Find the output signal for an amplifier with transfer characteristic: vO = 10-10-11e40*vi output bias of 5V input bias of 0.673 V and an input signal of 1 mV superimposed on the bias Homework Equations vO = bias out + signal out vI = bias in + signal in The...

There is an amount of energy stored in the battery. However, the rate of output would depend on the system its powering. What is the best formula to calculate the output energy from a battery? Also, what formula would calculate the stored energy of the battery?

Hi All, I am thinking about building a simple electrical generator (to use wave power), and I am trying to make sure I clearly understand the theory and expected results before starting the project. I have two basic questions: 1) How do I calculate the generators maximum current and...

Hey all, This may be a bit of a stupid question, but I'll ask it anyway... For the past weeks I've been running some DEM (discrete element method) simulations, and each simulations produces a couple output files and has different input variables/commands stored in a separate file. Already I...

Please help me with the question in the picture about pull-up and pull-down networks.

Homework Statement Find the input impedance. Homework Equations The Attempt at a Solution Input impedance= R1. I don't get why we can ignore the other resistors. Problem 2 : Homework Statement Find the gain of the system...

I have a motore with a propeller anchored to a load cell to measure the lift produced at varying power inputs. This is for a student activity I am running and I wanted to show that though more power in gives more lift there is a point after which efficiencey starts to go down again so I tried to...

First time posting a problem on here. Be gentle on me :) So I ran into this problem when I was testing the power supply block for my senior project.I attached a pic...

Homework Statement I am a dumb programmer trying to figure out the relationship for a sequence of output. I can't seem to figure it out by guessing, so I assume there's a way to mathematically work this out. Anyways I wrote a program to do discrete event simulation and I have the following...

Homework Statement The op amp in the circuit seen in the figure is ideal. Find the steady-state expression for vo(t). vg = 1cos(106t) V. Express your answer in terms of t, where t is in microseconds. Enter the phase angle in radians. Hints: (1) Let the node above the capacitor be Node a, and...

Hey everyone, I've been working on this project for awhile (some of you may recall having seen a very early version), and I am so close to being finished, but I have a problem somewhere, and I can't figure out why. So what is happening here is that this code is supposed to calculate the...

That 2 terminals shows PD of 1 volt on Meter, but when shorted, there is no current shown on Meter? I checked and rechecked [using different meters, wires, AC, DC options and what not], so I see only V measurement, but no I. Is it possible? If so, then what is the use of that PD, when we can't...

let say there is an bundle of fuel with 4 rings. Where ring 1 is center most ring and ring 4 is outer most ring. 1st ring contains: 1 fuel element 2nd ring contains : 6 fuel elements 3rd ring contains: 12 fuel element 4th ring contains : 18 fuel elements The general distribution of...

Homework Statement For vi(t) =V0 cosωt, obtain an expression for vout(t) in the circuit below and then evaluate it for V0 = 4 V, ω = 400 rad/s, R = 5 kΩ, and C = 2.5 μF. Homework Equations The Attempt at a Solution For this problem, I am having difficulty taking that second term...

I have a site made in PHP eons ago by someone I no longer have contact with. Lately site was attacked with a SQL injection attempt. Input is sanitized, so there is no immediate danger for the database, but this attack exposed vulnerability - if value of one the parameters is not from the...