I'm trying to create a bookstore calculation program with two classes, a presentation and computation class. Here is my code for the presentation class:
import javax.swing.*;
import java.awt.event.*;
import java.text.*;
import java.awt.*;
public class ch4Book extends JFrame implements...
http://sudokupuzzles.net/SCREEN.gif
Regarding a=@16... and in particular the symbol that looks like @ , what does @ mean?
Thanks in advance; this has been bugging me for a long time.
I'm pretty ignorant when it comes to statistics, so I'm hoping that there's an easy answer to my question (this is the good part of ignorance):
If I have run a set of Monte Carlo simulations of some process, where I have some set of input parameters that I've drawn from known distributions...
1. Two transformers T1 and T2 in parallel supply a common load at a lagging pf of 0.8, their per unit impedance are 0.04+j0.09 and 0.01+j0.07 at the same kva ratings of 3000KVA each and load power = 5500KVA
Determine the kva output of each transfromer and power factor
This is how i worked...
Hi,
I need with the following question.
Argon gas expands in an adiabatic turbine from 3MPa and 750 C to .2 MPa at a rate of 5 kg/s. Neglect KE and PE effects. Find maximum power output.
I know I need to first find the temperature of state two and then use that to solve for h2 (I have...
Obviously life on Earth must get energy from the Sun. But MOST of the Suns energy must be radiating out into space, pretty much "wasted" from our perspective.
So, my question is, about how much energy do you figure the sun produces per second? What sort of things on Earth could be powered...
A causal LTI filter has the frequency response H(jw) shown in the graph. For each of these input signals, determine the filtered output signal y(t).
1) x(t)=exp(jt)
2) x(t)=(sin(wt))u(t)
3) X(jw)= 1 / ((jw)(6+jw))
4) X(jw)= 1 / (2+jw)
I don't understand what I have to do to find...
What I need is that when a certain key (on a keypad) is pressed it would output a corresponding binary number. I have completed this with an HC11 in assembly language. My professor says that the HC11 is over kill and that a micro pic would do this for little money. I am new to micro pics and...
Hello people
I am trying to revise for my exam next week..I have searched everywhere but still I can't find how to calculate input resistance,stage input resistance and output resistance of a class A common emitter amplifier.
any help will be highly appreciated.
mathslova
I'm having a tough time wrapping my head around something that seems so simple. The Question is:
What is the maximum output power from a 12 volt battery that has an internal resistance of 6 ohm ?
The answer from this books is 6 W?
My formula
First I need to find the current
I = V/R...
I'm using texmaker, and i need to explain how to use some of the functions.
Therefore i need to be able to write the codes in a way so that the reader can see the codes afterwards.
Does anyone know how to do that? Because i can't find a way to do it.
I'm tryin to manipulate output results through a text control in MFC VC++. Just like in console apps, you can manipulate output with "cout", such as: cout << integer1 << "/" << integer2 << " + " << integer3 << "/" << integer4;
I have a text control in MFC that I need to display a result the...
I have a question in relation to electrical generators, 240VAC 50 Hz. A colleague wants to run a piece of gear that draws around 10A @ 240VAC with a pf of 0.8. He has indicated that running two 2kVA generators in parallel will provide greater ampage output, thus allowing the equipment with power...
Hi all,
I am just a mechanical engineer with no good background of nuclear physics. As I am doing some research on how much each country can posses nuclear bomb. The question is if I know the reactor location (approximate) , type of reactor and its Rated power (MWe) with assumed plant...
hi
i have one quiry related to input & output impedance of any circuit?
generally for cascading we expect High Input impedance & Low output impedance to avod loading effect?
But what is loading effect ? exactly what happen to current & voltage when loading ouucures ?
how this theory...
Homework Statement
The Sun emits electromagnetic waves (including light) equally in all directions. The intensity of the waves at the Earth's upper atmosphere is 1.4 kW/m2. At what rate does the Sun emit electromagnetic waves? (In other words, what is the power output?)
____ W
Homework...
Hi
When I go in Dos fullscreen mode, and press prtScrn, the output I get in Word is not an image. Whatever text was on the screen, appears as a text, and not in any image form. Also, no colours (which were present in the exe file which I ran in dos mode) appeared.
Can't I get the same...
Sound waves move from the left(R) to right(L) from a tube.
In the tube, the sound waves are split into 2 w/ radius R (half circled shaped)
a) if sound emitted has a freq of 444Hz, what is the min value of R that will lead to max L?
b) what is the smallest R leads to min sound at L...
Homework Statement
At a steam power plant, steam engines work in pairs, the output of the first contributing to the heat input of the second. Let the operating temperature of the first be 670.0 degrees C and 440.0 degees C, and of the second be 430.0 degrees C and 290.0 degrees C. If the...
1)right...well, a microphone converts audio signals into corresponding electrical impulses right.. I just want to know how much is the average output power of these things? and how much voltage can be achieved from them...
2)Another question I have is, what kind of antenna do they use in a...
Homework Statement
In the rope climb, a 68.4kg athlete climbs a vertical distance of 4.76m in 8.38s. What minimum power output was used to accomplish this feat?
Homework Equations
P_av=delta W/delta t
P=dW/dt
P=F*v
The Attempt at a Solution
Can someone help me get started on...
Hello All,
Now I'm looking for a good way to power all the chips on the control board I'm designing. It will be powered by two rechargeable 9V batteries in series for a total input voltage of about ~14V.
The interesting thing is that the chips I am using all require a wide range of voltage...
An entire system is filled with liquid.
At the top (30 feet) is a 2 gallon container,
connected to a tube (1.25" ID) for 14 feet,
connected to a tube (1.00" ID) for 10 feet,
then split with tees to 8 valves (.75" ID) and tubing (1.00" ID).
|....|
|....|
|...2.g...|
|....|
.\_..._/...
The index laws state that a^m x a^n = a^m+n
These means that in the equation 6^3x-12=6^x
6^3x/6^x = 6^2x
but when I solve for x using logs the answer is different to what my calculator gives me. What am I doing wrong?
Hello,
I've been writing a program to communicate with an embedded system via rs485
The protocol in use utilizes stick parity, where stick parity is defined as the first byte (which corresponds to the address of the device) having its parity bit set to 1, and the rest of a packet have its...
Carbon dioxide output??
How would you go about calculating the carbon dioxide output per unit mass and volume for combustion products, i have already calculated the energy outputs per unit mass and volume.
Many thanks.
I have an assignment to find out the transfer function for the dc motor. In order
to get the transfer function for the dc motor, I need to get the dc motor graph, that means output voltage versus time when we applied step input to the dc motor. The problem is, the output of dc motor is in...
Hi,
I'm in dire need for help in my assignment. I have been asked , a), to research on a dual output DC power supply (Output = +15v and -15v) of not more than 15 components and to identify the different sub-sections that make up the power supply on the schematics. And, b), give an explanation...
Hi,
What is the effect of "back e.m.f." on the torque output of a permanent magnet d.c. motor? I googled it but didn't get any results.. I just need a brief description to understand the concept..
Thanks :blushing:
Homework Statement
A 400 loop circular armature coil with a diameter of 5cm rotates at 60rev/s in a uniform magnetic field of strength 1T.
a) What is the peak voltage output of the generator?
b) What is the RMS voltage output of the generator?
The Attempt at a Solution
a) My answer...
Homework Statement
Can anyone help with this particular question
Using a steam power plant that operates on a simple rankine cycle and has a net power output of 45MW. Steam enters the turbine at 70 bar and 500 degrees c and is cooled in the condenser at a pressure of 110kPa by running...
Homework Statement
it is a reasearch project i have to plan an experiment to find what effect different wavelengths of light, from a lamp which is used to grow plants, will have on the output of an LDR.
Homework Equations
The Attempt at a Solution
so far my plan is (breifly) to...
A bicyclist coasts down a 7.0 degree hill at a steady speed of 5.0 m/s. Assuming a total mass of 75kg (bicycle plus rider), what must be the cyclist's power output to climb the same hill at the same speed?
I got 90N * 5.0 m/s = 450W but that is not the answer
The book says 9.0 * 10^2 W
i...
I want to preview my latex code before postin. The reason why i ask this is becaise everytime i preview the post the message says wait for the code to be generated. I have been waiting sometimes for a long time but to no avail. If instead i directly post it then the codin comes out immediately...
Homework Statement
(Problem 205) Design a synchronous counter that has a Moore output decimal
sequence of 0, 1, 3, 5, 7, and then repeats this same sequence over and over. To
ensure illegal state recovery, force all unused or illegal states to go to 0. Carry out
the design using positive...
If I had a group of ten atoms in a vacuum what effect if any would raising the valance electrons per atom have on the other atoms? The second question is that when the conduction electron falls back to being a valance electron is all the energy given off as photons or is some heat (proportion?)...
Whenever we use GUIDE to create a GUI, GUIDE generates an m-file. Now,
is it possible for one to use this m-file generated by GUIDE to re-edit the GUI? I mean say I downloaded an m-file from the internet which has a GUI interface. Can I use GUIDE to edit the m-file and "tweak" the interface to...
Homework Statement
A scheme of a diode circuit is attached. The voltages at the inputs A and B are 5V.
A. What is the output voltage (=voltage at the black node, Z)?
B. What values of resistance would you recommend for the resistor R?
2. The attempt at a solution
A. The diodes D1 and...
Hello All,
Here's a strange question for you. Is there any possible way to add two or three sine wave functions together so that the resulting wave never goes below the positive Y axis of the graph? These functions can be whatever frequency or phase necessary, just no vertical offset.
I am...
I have a car with a switchable transfercase that will allow me to choose between running FWD and AWD. I'll be putting the car on the dyno shortly, and I was just theorizing drivetrain output differences. Obviously HP numbers should drop roughly 15% because of the increase of mass on the...
A firm faces the following Average Cost function:
AC=50q^-1 +30-1.5q+0.125q^2
Calculate the output level (q) which minimzies
a) Average Variable cost
How do i find this out if i don't know the amount of fixed cost?
b) Marginal cost
Total cost=50+30q-1.5q^2+0.125q^3...
Homework Statement
Find the output voltage. a picture is attached giving all information.
The Attempt at a Solution
I'm new to op-amps, and I wasn't sure how to go about solving this. I thought it looked like an inverting op-amp but I wasn't sure. Since I wasn't sure, I tried to use...
The Kardashev Scale is a scale (duh) that judges civilizations based on their energy output.
There are Three Types:
Type I: 1.74×1017 W
Type II: 3.86×1026 W
Type III: 10^36 W
Now, its is said that civilizations will grow like this:
Type I: Uses the energy output of One Planet...
Hi everybody:
Help me out with this if you don't mind.
A 2000 ft lb per second source rotates a generator shaft at 60 RPM; It is generally agreed (not by everyone) that this produces 17.038 KW of power.
What is not clear is if this is 17.038 KW per SECOND then the total HOURLY power...
Hello,
I am interested in finding out the electric power output from a compressed air system. i see that there is a formula for calc. it with
the amount of compressed air required to generate about 1 W with a pressure of 1 bar is given by
Compressed air(cu.mm/s) = (1000 N-mm/s) / (0.1...
The Sun emits electromagnetic waves (including light) equally in all directions. The intensity of the waves at the Earth's upper atmosphere is 1.4 kW/m2. At what rate does the Sun emit electromagnetic waves? (In other words, what is the power output?)
I = P/A
I know I need to convert...