Recent content by Equilibrium

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    Frequency Division Multiplexing - Mastergroup 3 - Topic on telecomms

    Frequency Division Multiplexing - "Mastergroup 3" - Topic on telecomms Homework Statement What is the frequency output of the mastergroup combining network for a signal of 552kHz to be translated using mastergroup 3?Homework Equations Mastergroup Spectrum: For AT&T = 564 - 3084 kHz For ITU-T =...
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    How Can I Build a Twisted Fate LED Timer Inspired by League of Legends?

    This. This can be easily done with microcontrollers. Using the datasheet of the microcontroller look for features of timers, timers tend to be more efficient than for loops, this is for the PIC16xxx series. Don't know about arduino though This is a cool project i might try this in the Proteus...
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    What does an engineering job actually entail?

    can an engineer become also a technician at the same time? Most of your work involve theoretical design but is doing ideal work also important? Because of some unknown losses/disturbance might be added to your system. Since virtual simulation today are a little inaccurate compared to reality...
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    How can I create a circuit to control LED lighting with a switch in reverse?

    2N7002 N-channel EMOSfet. In an N-channel, when the gate of the transistor receives a high current, then the Drain and source terminals are open circuited. When the gate of the transistor receives a low current, then the Drain and source terminals are short circuited. P-Channel is the opposite...
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    How long until transistors become completely obsolete?

    Devices today are getting smaller and smaller which makes the circuit layouts more complicated and hard to design. And knowing that microelectronics is just limited to the size of the atoms. Are people today now developing a replacement on transistors? Just like in the past when they are...
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    Longitude problem on a Terrestrial Sphere

    Homework Statement How far apart (in miles) are 2 points on the equator if their longitudes differ by 1 degree? The correct answer is 69.8 miles, I'm not sure if typo Homework Equations S=r\theta radius of Earth = 3959 milesThe Attempt at a Solution \theta = 1\deg*\frac{\pi}{180}...
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    Molality Calculation: How Much NaCl is Needed for a 0.35 Molal Solution?

    Homework Statement How many grams of NaCl must you add to 750g of water to make a 0.35 molal solution? Ans. 7.59g Homework Equations molality=\frac{mol_{solute}}{kg_{solvent}} MW of NaCl = 23 + 35.45 = 58.45 g/mole The Attempt at a Solution...
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    Geometry: Triangle with a Circumscribed and Inscribed Circle

    I already know how first form three triangles with altitude three total area = 1/2 (ab) = 1/2(3)(a) + 1/2(3)(b) + 1/2(3)(16) eqn 1 this will simplify to \frac{ab}{a+b+16}=3 Then using this circle theorem "If two segments from the same exterior point are tangent to a circle...
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    Geometry: Triangle with a Circumscribed and Inscribed Circle

    may i take the OP's place? im not sure about this problem and I am just referring to the image found on google image 1. it seems that one side of the triangle is the diameter of the circumscribing center so AC = 8*2 = 16 let L_{B} = Length of the center of the inscribed circle to the vertex...
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    Acceleration with Velocity Problem.

    at the instant his father catches his son, they all have the same distance from since the son passed his father, hence: d_{father}=d_{son} continue here
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    Vibration problem given Force,length and mass

    i see, so \rho=\frac{m}{L_{string}} L_string = 80cm is different from the length of the string apart which is the wavelength/2 = 50cm 1000vib/s thanks
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    Vibration problem given Force,length and mass

    http://hyperphysics.phy-astr.gsu.edu/hbase/waves/string.htmli see now but the answer is not given in the multiple choice f=\frac{v}{\lambda} f=\frac{v}{2L}\mbox{ since }L=\frac{\lambda}{2} v=\sqrt{\frac{T}{\rho}}=\sqrt{\frac{T}{\frac{m}{L}}} f=\frac{1}{2L}\sqrt{\frac{T}{\frac{m}{L}}}...
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    How Do Potential Differences Distribute Across Series Capacitors?

    So is it like this: the previous charge of the energized capacitor is used to charge other capacitors. The previous energized charge is distributed to new charge of C1 and the equal charge of the series capacitors. Q_{\mbox{energized C1}}=Q_{\mbox{new charge of C1}}+Q_{234} Hence the new charge...
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    Find angle at which the projectile hits

    I don't know but ignore my answer OP, and correct me if i got it wrong helpers. Vx = 16.6m/s Vy = Vinitial + gt Vy = 0 + gt = 9.81m/s(3.2s) tan(theta) = Vy/Vx = 31.392/16.6 theta = 62.13 Vresult^2 = 31.392^2 + 16.6^2 Vresult = 35.51
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