Recent content by erik-the-red

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    Acid and Base Equilibrium Question

    Had I not checked "e-mail notification," I would never have known.
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    Acid and Base Equilibrium Question

    I appreciate your solution, but I'm surprised that you were able to find this thread, since I created it last year when I was in AP Chemistry. Speaking of which, damn - that was a long time ago :bugeye:
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    A problem using Young's equation from the double-slit experiment

    Thanks for all the responses. Indeed, my tex equation had numerous typos, I apologize for those. I was finally able to do the problem by using d \cdot \sin(\theta) = (m + \frac{1}{2}) \cdot \lambda and its corresponding constructive counterpart. I used the equation y_m = R \cdot...
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    Image Distance and Magnification

    Doc Al, Indeed, it was incorrect. Thanks!
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    A problem using Young's equation from the double-slit experiment

    Question: Coherent light with wavelength 400 nm passes through two very narrow slits that are separated by 0.200 mm and the interference pattern is observed on a screen 4.00 m from the slits. A What is the width (in mm) of the central interference maximum? y_m = R \cdot \frac{m \cdot...
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    Image Distance and Magnification

    Sorry, I still get the same answer.
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    Image Distance and Magnification

    Did I not provide enough work?
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    Image Distance and Magnification

    Question An object is a distance of 23.4 cm from the center of a silvered spherical glass Christmas tree ornament which has a diameter of 5.70 cm. A What is the position of its image? B What is the magnification of its image? I think the object can be treated as a convex mirror. s...
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    Magnetic Flux and Induced EMF in a Coil

    There are actually 10,000 square centimeters in one square meter. This is a problem from an online assignment. I know the first and second parts are correct. The third part is still puzzling me.
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    Magnetic Flux and Induced EMF in a Coil

    The first part of the question asked: What is the total magnitude of the magnetic flux (\Phi_i) through the coil before it is rotated? I used the equation \Phi_i = B \cdot A \cdot \cos(\phi). My answer of 1.39e(-5) is correct.
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    Magnetic Flux and Induced EMF in a Coil

    In a physics laboratory experiment, a coil with 210 turns enclosing an area of 12.7 cm^2 is rotated during the time interval 3.70 \cdot 10^{−2} sfrom a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of...
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    Faraday's Law and magnetic field

    I see I did not use the radius for the area. Thank you.
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    Faraday's Law and magnetic field

    A coil containing N = 550 turns with radius r = 3.90 cm, is placed in a uniform magnetic field that varies with time according to B=(At + Bt^4), where A = 1.05 \cdot 10^−2 {\rm T}/{\rm s} and B = 3.00 \cdot 10^−5 {\rm T}/{\rm s}^{4}. The coil is connected to a resistor of resistance 640 Ohms...
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