Recent content by chronie

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    Adjusting and Measuring RPM On Lawn Mower Engine

    Hi, I have a lawn mower engine and I need to read and adjust its rpm precisely. I am totally lost. I would like to ask how some of you would approach this problem. What I have right now is I am going to buy an Arduino circuit board controller. Then I am going to attach a tachometer onto...
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    Controller Design: Learn How to Build Controllers

    Oh okay so they are pretty much already assembled computers. Let's say I have a temperature sensor connected to my computer and i want to control the temperature in the room with a heater, also connected to my pc. Would I have to write a computer program and hook up my heater or would I have...
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    Controller Design: Learn How to Build Controllers

    Hello all, I am a Mechanical Engineering junior and I just finished with my first control systems class. I have found the class to be really interesting but it was all theory. I forgot to ask the professor before I left for summer, how do you actually build controllers? I understand how to...
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    Mech Engineering Four-Bar Linkage Angle Question

    Sorry I forgot to add a picture of the crank
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    Mech Engineering Four-Bar Linkage Angle Question

    Homework Statement I have a design problem where I have to design a crank rocker and find all the angles. I have already chosen my sides. The crank will move in increments of 30* up until 360. Homework Equations **Please see the attachments The Attempt at a Solution I have plugged in my...
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    C/C++ C++ Passing Variables Between Classes

    I'm sorry, in my real code I had commas. I am just confused as to why garbage values print out.
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    C/C++ C++ Passing Variables Between Classes

    Hi, I am new to programming, but I think this is a simple error. For my programming code I am trying to pass a variable from a certain class to another class. The code is similar to below.Class 1 #include "class2" Class2 class var1=1 var2=2 class.acceptingvariablesfrom1(var1 var2)...
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    Beginner Function Calling Question

    Yeah that is exactly what I was looking for. However, I think I have found my error. I believe I need to do my cout statements inside of my matheq function. I did that and it worked. Thank you though Mark for responding!
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    Beginner Function Calling Question

    Below is a sample code. My professor starts code and we have to finish the code. Below is not the assignment but a sample I have written up to help my question. I have two .cpp files one named main the other named func1. Within func1 I have a function called matheq. I was just wondering if there...
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    CalcIII extreme values and saddle points

    oh I totally forgot about substitution. Thank you!
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    CalcIII extreme values and saddle points

    Homework Statement http://img121.imageshack.us/img121/4601/54510849.png The Attempt at a Solution I separated the partial derivatives. However I do not know how to solve a linear function with a raised power. I know that I will have to solve for (0,0) and another answer. Yet, I just do...
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    PSPICE Voltage Controlled Current Source Question

    Thank you very much. I removed the battery positive and it worked. I think the reference direction is down so I think I'm good. Thank you again, this helped me out greatly.
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    PSPICE Voltage Controlled Current Source Question

    1. My Attempt I need to convert the book problem of a circuit with a voltage controlled current source with one in PSPICE. I am attaching a picture which shows my attempt. I think I have it wrong but it might be right. So if someone with knowledge in EE and PSPICE could help me it would be...
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    How Do You Calculate the Angle of Inclination for a Slide?

    ok thank you Astronuc, I'm new to my college physics classes and some easy things stump me!SOLVED
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    How Do You Calculate the Angle of Inclination for a Slide?

    So I should take the difference of distance between the two positions. That gets me 12. Should I then make a triangle and use .12m as my hypotenuse and 1m as my other side and just take the tan inverse of that?
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