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    What do you guys think of my current work in progress?

    Just threw together a new aquascape today. Was a bit bored. :) YES, they're all real, supplied with T5HO lighting, CO2 at 2bps, SeaChem Flourish, ADA AquaSoil, and Eco- Complete. http://www.flickr.com/photos/33828267@N06/4337983861/ thanks guys! i'm only 15 :P got started when inspired...
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    I need help Astronomy question?

    A) You can observe cyclic Doppler shifts of the spectral lines in a spectroscopic binary. B) You can observe the orbits of both stars in a visual binary. C) One star periodically blocks the light from its companion star in a spectroscopic binary. D) You can only observe the orbit of one star in...
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    Probability Random Walks problem?

    Peter and Paul bet one dollar each on each game. Each is willing to allow the other unlimited credit.Use a calculator to make a table showing, to four decimal places, for each of p =1/10, 1/3, 0.49, .499, 0.501, 0.51, 2/3, 9/10 the probabilities that Peter is ever ahead by $10, by $100, and by...
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    Physics RLC Series Circuit?

    A sinusoidal voltage ?V(t) = (40.0 V) sin(100t) is applied to a series RLC circuit with L = 170 mH, C = 99.0 µF, and R = 78.0 . (a) What is the impedance of the circuit? (b) What is the maximum current? (c) Determine the numerical values for Imax, ?, and ? in the equation i(t) = Imax sin(? t - ?).
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    Power in an AC Circuit I need help Physics?

    A series RLC circuit has a resistance of 45 ohm and an impedance of 75 ohm. What average power is delivered to this circuit when Vrms=210V? Answer P = 352.8 W
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    Computer Science Assertions and weakest pre/post-conditions?

    All 4 parts to this question concern the assertion P = {x=2**K & N>K} and one of 4 different assignment statements. You are to supply the missing assertions Q1, Q2, Q3, and Q4. Note that Q1 and Q2 should be the weakest preconditions for P with respect to the given statement; Q3 and Q4 should be...
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