Recent content by pattiecake

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    Defining Charge: Electrons, Protons, and Spin

    It does help, thank you! Perhaps this is beyond what can be explained here, but what other fundamental properties are there, in addition to charge and spin? Are they in some way related? How do we know they exist? Charge we know obviously exists, because of the way things behave in a...
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    Defining Charge: Electrons, Protons, and Spin

    Things can be charged, ions can have a charge, etc.-which essentially mean an excess or reduction of electrons. Protons have a positive charge-but since we define an atom by it's number of protons, it is the negatively charged electrons responsible for an atom's charge. But what is charge...
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    Calculating Projectile Trajectories in 3D Space: Applying Physics and Calculus

    Exactly...how do I find these time equations? Would they be parametric? Would they be based off of some simple physics equations that I'm just missing?
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    Calculating Projectile Trajectories in 3D Space: Applying Physics and Calculus

    Forgive me if this is deemed a "homework question", b/c it kinda is, but I'm thinking about it a little differently... It's a 3 dimensional calc. III problem, that I've broken down to this: Essentially there's an "enemy ship" traveling in a straight line at a constant velocity. I'm...
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    Inside the Black Hole: Unravelling Its Mysteries

    The appearance of your body being stretched out like a piece of spaghetti isn't relative to you, an observer, or anything else. Your body is literally being pulled apart by the immense force of gravity...good times!
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    Finding Optimal Speed for Ring Wraiths Flying from Barad-Dur to Rivendell

    This is actually homework for calc. III, but...eh... The nine Ring Wraiths want to fly from Barad-Dur to Rivendell. Rivendell is directly north of Barad-Dur. The Dark Tower reports that the wind is coming from the west at 68 miles per hour. In order to travel in a straight line, the Ring...
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    What are some creative ideas for a chemistry-themed t-shirt?

    Mocktails are still coming up! Thanks for asking! Since it's outside, we're going to go with the dry ice in the punch...it'll be good! Hmmm breast implants? Not sure if it will go over well at this liberal school! Thanks for your imput though!
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    What are some creative ideas for a chemistry-themed t-shirt?

    I'm not sure how I always get roped into these things...but again I turn to you, my faithful science friends, for your creativity & imagination! The Chemistry Society at my school is getting club t-shirts again this year. Being an all girls school, last year's shirt read: "What do you need...
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    The Catch 22 of Newton's 3rd Law

    I'm long past the days of general physics, but a friend who's taking it now posed an interesting thought experiment, of which to my embarassment, I was unable to answer! He said, imagine a horse is urged to pull a wagon. The horse refuses to try, citing Newton's third law as his defense: "The...
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    The Chemistry Society's Unique Mocktail Challenge!

    Hmm I like your ideas Astronuc, & it would definately taste great! But I need to tie it in with the chemistry theme...glowing drinks would be perfect! Now if only I can get them to taste like the tropical ones! Thanks guys!
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    The Chemistry Society's Unique Mocktail Challenge!

    Ok, so my college has this BIG "mocktail" competion every year. Each student activity group comes up with a unique mocktail (cocktail without alcohol), that somewhat relates to the organization. The mocktails are then taste tested and voted on. So I'm in chemistry society and I've been told...
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    Struggling in Organic Chem? Any Recommended Study Guides?

    Only three weeks into organic chemistry I, and I'm already feeling hopelessly confused. Can anyone recommend a good study guide or book to help clarify the basics, and explain the big picture? Thanks!
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    Nuclear Decay Problem: 238U to 206Pb & Atom's Age

    Thanks everyone for your help... I'm still not seeing how Th234 emits a beta particle. Can't it just emit an alpha, bringing us to 230Ra? What does it emit a beta, what factors control this?
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    Nuclear Decay Problem: 238U to 206Pb & Atom's Age

    Thanks Astronuc...btw, where is Uluru? So does the atom just keep emitting an alpha particle until it reaches the atomic number corresponding to lead? Shouldn't there be something more complicated here?
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    Nuclear Decay Problem: 238U to 206Pb & Atom's Age

    Hi Arivero, thanks for your response! Given what you've told me...we have 238Ur-->Th + ? How can I determine the probability of what is going to happen, and use that to complete the reaction?
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