Recent content by Poincare1

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    How Does a Light-Detecting Book Light Circuit Work?

    Firstly, the book light works fine. I'm also attaching a circuit diagram. I don't really understand why the emitter of the transmitter (its marked with an E) takes in the current. Could someone explain to me how this circuit works?
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    Physics project: Self propelled car.

    Air hogs planes are pretty expensive if you don't use them for what they are meant for! Instead, I would suggest using a spray can (the ones that clean computers and stuff) and have the axle trigger it somehow, like someone pulling a string.
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    Solving the Rocket Equation: Confusion with Signs

    why won't the latex work
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    Solving the Rocket Equation: Confusion with Signs

    i don't see how you get [tex] M- dM [tex] is is because of [tex]E=mc^2[tex]
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    Finding a Physics Book for Beginners with Basic Calculus

    thx The message you have entered is too short
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    What computer should a physics major choose for their studies?

    I am not in college or ever taken a full year's stay at a college (i am in fith grade :D) but i have taken a college course in trig i used to give quizzes early (i had to move, in fact i am moving tommorrow!) in a physics class. And in my opinion if you buy/get a microcontroller, EEPROM(optional...
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    Finding a Physics Book for Beginners with Basic Calculus

    I am trying get started in physics and i want to get a physics book with $only basic calculus$. do anyone suggest anything?
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