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  1. D

    Very easy question

    simple question, if the derivative of cos(x) as x->0 is 1, the is the derivative of cos(3x) as x->0 = 1 aswell?
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    Having a little trouble, very typical question

    thanks everyone, btw hallsofivy displacement is a vector, distance is not. just to cleat that up :) thanks again i understand the problem now
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    Having a little trouble, very typical question

    oh im sorry, it is suposed to say 100m North
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    Having a little trouble, very typical question

    sry, i cant find the mistake your talking about, would that 85 be -115?
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    Having a little trouble, very typical question

    im not use to working is 3D so i need some help you are going to a restaurant. you leave your apartement and take the elevator 30 m down, then 15 m south to the exit. then u travel 200 m east and then 100 m to the restaurant. what is your displacement. so what i did is: -30k -15j...
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    Simple question, tangent line

    finally, got it
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    Simple question, tangent line

    thanks for the replies, but i dont understand how the c.d is 2h(2+h)
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    Simple question, tangent line

    but those are different terms, arent i looking for a common denominator?
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    Simple question, tangent line

    i dont understand
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    Simple question, tangent line

    thanks okay stupid mistake, now im stuck again tho \frac{2}{2(2+h)}-\frac{(2+h)}{2(2+h)}*\frac{1}{h} comes out to \frac{-1}{h}}*\frac{1}{h} gives me -1/h which doesnt work, darn
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    Simple question, tangent line

    really isnt calculus but thats the name of my class so, anyway im having a problem here. i think its pretty simple im just missing something. im supposed to find the slope of the tangent line using one point and: slope of tangent line = \frac{f(a+h)-f(a)}{h} h\rightarrow0 find slope...
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    Circular motion question

    nvrm, the it is F \propto f^2mr thanks tho
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    Circular motion question

    doing a lab report on circular motion and was asked to make a combined proportionality statement, just asking yes or no, is this right? F_c \propto f^{2} \propto a_c \propto \frac{1}{m} \propto r where "F_c" is the centripetal force, "f" is frequency in Hz, "a_c" is the centripetal...
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    How do they know the universe is expanding

    are you saying that space is infinite?
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    How do they know the universe is expanding

    I see, so really the notion that the universe is still expanding today is an assumtion?
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    How do they know the universe is expanding

    This stuff isnt fresh on my mind, but wouldn't the fact that we see continuous redshifting in galaxies billions of light years away relative to galaxies millions of light years away from us imply that the universe is still expanding in our present time? Sure the redshift we read on galaxie X...
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    Hume's fork

    Hume's fork: "Either our actions our determined, in which case we are not responsible for them, or the result of random events, in which case we are not responsible for them." Is there any philosophy that suggests we are in control of our own actions?
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    The golden rule a relative law?

    sameandnot, the story of Daniel was just an example to prove that the Golden Rule was based on opinon and perspective. I didn't mean to imply that it was given to us to rule our societies and prove that it's flawed. Basically, the way I see, is that the Golden Rule is relative to any person's...
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    The golden rule a relative law?

    In what way has he violated it? Most, probably the criminal would like to be treated with respect, goodness and justice. But what does he know about respect, goodness and justice? Does he know exactly as much as the judge? The jury? Anyone? How can the way you want to be treated be universal...
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    The golden rule a relative law?

    Here's the unfolding you mentioned: You ask what is the source of conflict, I say the lack of virtue and rationality. You then ask, what is the source of lack of virtue and irrational thought? I do believe that this is the only meaningfull way to answer the tough questions in life, at...
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    The golden rule a relative law?

    I do, BUT, the way you wish to be treated is your wish, and your wish alone. Ill agree that most people would like to be treated in a good and just manner, but, what is "good" and what is "just" is no longer absolute if you use one single person's opinion of the two. Do you see what I'm saying...
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    The golden rule a relative law?

    The source of conflict, war and hate? First, I don't think war can be so easily associated with hate, because wars are caused mostly by conflict and selfishness. Either way, would you agree that conflict leads to war, aswell conflict may lead to hate? If so, the we are looking for the source...
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    Hess' Law, checking my answer

    thanks for all the help andrew
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    Hess' Law, checking my answer

    I don't have the answer to this, and it's a big question so I'd like to know if I got it right. Thanks Determine the \Delta H value for reaction A: A)3CH_4 \rightarrow C_3H_8 + 2H_2 \Delta H=? Okay so I was given a reference table and used these two equations for Hess' Law...
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    Simple enthalpy question

    sry my latex is messed up, the h should be capitalized and there should be a space in between the equation and the delta H o so it would? how come? because I understand it as yes, when you double the amount of reactants and products you need double the energy, but even so, the enthalpy change...
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    Simple enthalpy question

    lets say u have: Ch_4 \rightarrow C + 2H_2 \Delta H + 74.9 kJ When you multply the whole equation by 2, does the change in enthalpy double? or does it stay the same? keeping in mind that it's reduced to kJ/mol... thanks 2Ch_4 \rightarrow 2C + 4H_2 \Delta H + 149.8 kJ ??
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    Quoting Plato

    no it helped sameandnot, thanks, apreciate it
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    Quoting Plato

    what do you mean? i meant if i were to quote him what would i put in parenthathese like (Phaedo 152a) or watever, how do i know what page to write if i don't have the Stephanus Edition?
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    Quoting Plato

    i need a little help, how do i quote Plato if i don't have the Stephanus Edition? i just have a book called "dialogues Plato" thanks
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    Proving absolute morals exist

    sorry thats not what i really meant, i meant did i missinterpret any of plato or aquina's philosophies
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