Output Definition and 1000 Threads

I am struggling in college at the moment and I don't know where else to turn. Any assistance or advice would help, thank you (a) A firm’s short-run production function is given by Q = L2e-0.01L where Q = output and L = labour. Find the value of L that maximises the average product of labour...

Hi friends, I have a system (with unknown properties) which takes an input vector of length 10 and outputs a vector with length 6. I select Inputs vector 'I' which is a 1000x10 matrix, : 1000 samples of 10 elements. And outputs vector 'O' is a 1000x6 matrix,: 1000 samples of 6...

Hi all, ME major here that's very confused about the integrating op-amp. It's pretty simple what I am confused about, just unit problems. Suppose you have the following integrating op-amp circuit: Feedback capacitor: 10μF Input Resistance: 10kΩ Input Voltage: 5V[sin(100t)] My...

Hi, I'm trying out this sample input file from this website (http://www.phoenix-int.com/~AnalysisServer/FileWrapper/example.html), but I couldn't get the same output as shown. Below are my input and output files: INPUT FILE...

Homework Statement Given that the diodes are ideal for the circuits a) and b), plot each of their output for the input shown. Label the most positive and most negative levels. Assume CR >> THomework Equations The Attempt at a Solution I am having a really hard time understanding the role of...

Homework Statement I have to analyse the power output of a solar panel using a basic electrical engineering circuit analysis of a solar module if a complete row of solar cells in it is shadowed (For example, such shading might be caused by dust that slides down the surface of inclined panels.)...

This question was asked to me in a VIVA. [b]What examiner asked. [b] How do Sinusoidal output comes out in the Wein-Bridge Oscillator. ... I tried to solve the problem using the control system. That is, by deriving the transfer function of the...

Hello everyone! I'm trying to figure out how to calculate the output voltage of a photodiode in the photovoltaic mode. I want to generate about 5-10V using lasers and a series of photodiodes without using an op-amp (just Vout of the photodiode equvivalent circuit). If I could get any help...

Hello all. I am currently trying to find the gain of a 2 stage amp. According to some notes I have, it is: A = A1 x A2 x (rin2 / (rin2 + ro1)) Where A1 = gain of first stage A2 = gain of second stage rin2 = input resistance of second stage ro1 = output resistance of first stage Let p...

I am trying to write a program that in Fortran 95 will integrate x^2 from 0 to 1. Easy right?? I'm getting errors, though, that I really don't understand. Here is my code: program montecarlo2 implicit none real :: fmax,iseed,srand,xmax,x2,x,y !why do we need pi?? integer ...

Homework Statement I am learning about differential amplifiers, and am having trouble determining the common-mode output resistance. In the text, we have the two sections "Differential-mode gain and input and output resistances" and "Common-mode gain and input resistance." Notice the lack of...

1. With the circuit provided determine the small-signal input and output resistances of the circuit. 2. I was either given or found all the following info for the circuit: VA = 110V β = 115 T = 300k quiescent base current is 12.0 microA R1 = 12 kOhms, R2 = 6 kOhms and Rc = 2 kOhms Ic =...

When deriving the natural level of output i am confused as to how the leap is made in the last two lines. P = P(1+μ)F(1-Y/L,z) => 1 = (1+μ)F(1-Y/L,z) => Yn = h(μ,L,z) I understand how the mark-up, Total Labour and variable factors are the factors of the natural level but how does...

First of all, if you have a generator with an open circuit, and you are pedal powering it, where does the energy go? I would say it is lost as heat, but not sure what could heat up. The coils in the generator itself? Next, what happens if you short the output of a generator? Does it make it...

Hello! I'm currently working on a solenoid and trying to simulate the response of a ferrous rod in the coil. I've been using FEMM 4.2 for my magnetostatic simulations, and Pspice Schematics 9.1 for the circuit part. I was thinking of combining the two by using scripts to let FEMM run through...

Homework Statement Figure 29 shows a battery connected across a uniform resistor R0. A sliding contact can move across the resistor from x=0 at the left to x=10 cm at the right. Find an expression for the power dissipated in the resistor R as a function of x. Plot the function for ℰ=50 V...

Homework Statement How do I find the answer for part C? 3) A battery with an Emf of 12 volts is hooked up to a 125 ohm resistor and an ammeter. The ammeter measures a current of 75 mA. a) Calculate the internal resistance of the battery and the actual voltage across the battery. b) Calculate...

I have a basic question about MEMS gyros - Let's say a dual axis(X & Y) gyro IC is lying flat. Ideally the output reading would be zero. If I lift one end of the IC by some degrees, there would be change in output reading. Let's call this new reading. When the IC is held at this position...

Hi all, I am faced with this question, I am stumped as it is presented in a different way to what I am used to: The output from a FIR filter for a unit step input u[n] is y[n] = δ[n] + 3 δ[n - 1] + 6 δ[n - 2] + 10 δ[n - 3] + 15 u[n] What is the impulse response of the FIR filter? A...

Hey what's up guys, I am currently designing a mini-go kart type device. I was hoping someone with knowledge of these kinds of things could give me some tips. Materials in question: Rear Drive Wheels Problem: The wheels are intended to rotate with the output shaft of this motor...

I designed the BJT amplifier below. After substituting in for the values of the actual resistances measured in lab, I reran the simulation. The hand calculation I derived for the gain was nearly spot on with what I was seeing in Multisim. Now, when in lab I get approximately the same value I...

Homework Statement Hey everyone, trying to finish up a report and having a problem with getting to the final answer. It is a final report on hydro kinetic energy. We are planning to install a hydro kinetic turbine under a bridge and calculate what the energy output would be in KW. I am...

Hi, I'm writing a program for nqueens where inputs will be n and possibly a few existing queens already placed on the board. So far I've come up with one method, but got stuck on the second one. (hoping second method is more efficient) 1st method: - tabulate possible outcome of (n*n...

Homework Statement Design an op-amp based circuit to produce the function Vout = 5*V1 - 4*V2 Homework Equations The Attempt at a Solution I have no idea how to approach this. I know there are two voltages on the two inputs, and that the feedback resistors should be going to the...

Why should the input follow the exact output in control systems (Transfer function). What if my system is an amplifier ? shouldn't that means that the output is the input * gain ? I can't understand the differences between dealing with a real system ( such as an amplifier) of dealing with a...

These are some of the factors I brainstormed that goes into the functionality of a spotlight: 1) Light output of the light source (measured in luminous flux, if I recall correctly) 2) The reflective potential of the reflectors surrounding the light source 3) The geometry of the reflectors...

I'm trying to think of a way to calculate the power output of a solar panel by taking in information from hourly weather data from weather.com (e.g. sunny or cloudy?, temperature, etc.) and basic characteristics of the location and panels, but i cannot find or think of a way to do so. Basically...

[b]1. A 2.5GWth nuclear power plant operates at a high temperature of 570°K. In the winter the average low temperature at which it dumps waste heat is 268°K; in the summer it’s 295°K. Determine the thermodynamic efficiency of the plant in each season, and then derive from it the maximum possible...

Hi, I want to use piezoelectric material to harvest compression energy, i need to calculate the power output but i can't find enough information on the web to figure it out... First, I want to learn how to calculate the power output of piezoelectric material using d33 and g33 data...

How much power would be produced when using an independently powered supply of 100 pound/min air at 3bar/40F air on a 6.2L GM LS V8. Excess air will be vented to atmosphere with relief valves to stabilize the air flow to the throttle valve. What are the factors need to be considered...

what i mean is, if i want to make a certain rectifier circuit to some sort of load, how would i know which diodes and transistors/IGBT's/MOSFET's to use? for example, i have an AC source with 50 hertz and a load that requires 60 hertz, what would i use? can you show me calculations?

When I manipulate two matrices by taking one and multiplying by the inverse of the other to solve a system of linear equations, how do I save the values of the output? for example, the output i got for each variable was in decimal form, and i wanted to change each into fraction form.

Greetings, I recently discovered Mathematica's Format function, and it has been of great use to me. However, there is one thing that I want to use it to do, that I have yet to be able to. I could do this easily, though, if there is some Mathematica function that works as follows... If I put a...

Different forums have slightly different formatting so if you implement an idea or discover something using Jorrie's online calculator and want to share the output table with the rest of us, these are some simple things to do to make the table clear and legible in PF setting. For example say...

I'm trying to interface a pressure sensor (specifically, a Honeywell NSCSANN015PAUNV piezoresistive pressure sensor) with an Arduino Uno analog input, but I'm not having much luck. The output from the pressure sensor is a "ratiometric analog output" with a pin corresponding to V+out and a pin...

The weather got warm enough for me to go for a bike ride on Saturday on a favorite route. As summer and early fall are long behind me I am not in as good of shape as back then. Riding my bike up a particularly steep hill and trying not to push stupid hard I was a bit depressed at the state of my...

Homework Statement Hello, I'm not looking for an answer to my problem, just some hints. Any help would be greatly appreciated. I am required to control a hexacopter, so I'm designing a lead compensator to control the height, it should be able to counteract the pull of gravity. So far I have...

Good day to all Physics Forums members, I am currently undertaking a project which involves the use of a Linear Variable Differential Transformer (LVDT) to measure the distance an object makes between two points. My setup is as follows: LVDT Type: Solartron DC50 with sensitivity of 6.158...

I really do not understand what my instructor taught about profit maximizing and profit earned at maximum...so please tell me how to solve them. Thank you very much! Happy Planet drinks price change as the quantity sold changes. In particular \(p=10-0.005x\). The total cost to produce the...

I'm looking at some solutions for a problem I found. This link is http://www.etcs.ipfw.edu/~lin/MET487/2011-SumII/Lectures/Hw3_Sols-MET487-Sum2011.PDF It's page 4 problem 3.1. Okay so V_in is given to be 10cos(2∏t), but their graph for V_in makes no sense to me and consequently, V_out...

I have a circuit (attached) that is providing too much voltage into my FPGA. I attached the circuit. The output of the transimpedance amp is sending 4.2V to my FPGA which only needs 3V. I h ave reason to believe that the 4.2V input into the FPGA is causing some weird anomalies to occur while...

Hey I have a text file with 2 blocks of Data Example Numbers 1: 1,2,3,4,5,6 7,8,9,10,11 ... Numbers 2: 92,93,94,95,96 97,98,99,100,101 ... How would i use FORTRAN to read the text file and output in a column and row format.. Example 1 92 2...

I have some results in Matlab which are mainly cell arrays and numbers. I want to save these results(either in a .txt file or anywhere else) so that I can use them later to make a table, draw a graph, etc... What is the best way to do that?

This is a question that i am struggling to find any answer to on the internet. Doing some research for my 4th year honours dissertation. I have a wind turbine capable of producing a certain output at say windspeed of 10mph. Meaning that the wind is moving towards the turbine at 10mph...

How do I convert the RPMs of a simple turbine (e. g. a windmill) into the power it generates? Let's say that I want to know if a single windmill of a certain size can power a refrigerator. Assume that I already know how long the blades have to be to produce the RPMs, and I know the energy...

Homework Statement I'm struggling with this, I have series of data for the deflection of a cantilever beam and the corresponding output voltages from a strain gauge, wheatstone bridge and amplifier circuit. I'm trying to find the relation between voltage output and force, i.e. Force = K x...

Hi everyone. I'm doing an experiment where I measure the capacitance of a capacitor. However I want to make sure that the output impedance of the function generator is low (to get accurate results). My circuit is attached. How do I calculate the impedance from the information provided? Help is...

Hello everyone, first time poster, long time reader here! I'm an ex-math major and while I'm no longer pursuing a degree anymore in mathematics, I still continue onwards in my spare time trying to learn as much as I can about it because it's always been something I've enjoyed partaking in and...

I know this is a bit of a newbie question but I want to learn something about generators. I want to build a simple hand cranked generator. Just a hobby. Making coils, and using magnets is the easy part but I don't understand the specifics around this. Can anyone tell me how to determine...

hey, so let's say i have an electric fan with something like 2, 1/4 in. blades, 60 rpm, and 10 cm diameter and i want to attach it to an object and turn it on so it would fly (like a quadrotor) before i try, i want to know if it is possible by knowing how much counter force can it make on the...