Recent content by thinktank75

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    Looking for online tutor service for daughter

    If she has any questions, she can post her homework questions on the forums here, they're very helpful here :)
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    Pullin a string to add energy to a wheel

    my book says: for the w_final: i need to find the initial KE of rotation Iw^2 ------ 2 and I need the work done by the applied force: w = F*L then they said to find the final kinetic energy, you add those 2 both together. now that I have the final KE how to I find the final rotational...
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    Schools Exploring Grad School Options with a Physics Degree

    I have the psychology for first year.. but I'm also taking all of the sciences (biology, chemistry, physics) maybe it's different in Canada? We don't start adding in our majors / specialist programs/ minors until second year.. but we start the prereq for certain programs 1st year..
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    Pullin a string to add energy to a wheel

    I got: W_final: FL + (I*W^2 / 2) P = Fr * w but they're both wrong, I don't know what's wrong with the responses... please help...
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    Schools Exploring Grad School Options with a Physics Degree

    I'm only taking first year physics because I was considering doing med school... but for 2nd - 4rth year I plan on doing a major for psychology and sociology. Thanks for your advice! P.S: A's? That's really hard... what if I got A's in all years except 1st?... first year isn't going too well...
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    Graphing rotation & linear quantites

    since its counterclockwise it would go to positive (so increasing) but then in reaches right back down to negative.. so non of the line graphics work?
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    Graphing rotation & linear quantites

    Since they're linear ('cause they're constant) is it the graph C? (positive, but what about the linear graphics that is negative, decreasing and increasing, those are confusing me)
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    Momentum problem : bullet and chair

    The answer was 1.3 CM and it was corrected by our teacher.. do you have an e-mail address? I can e-mail you the response work detail if you want.
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    Graphing rotation & linear quantites

    Would it be [ E ]? the velocity can have a negative value? (since Y is negative) but why isn't it a straight line? isn't the velocity constant? Edit: E was wrong, but the wheel starts rotating at position 15 minutes on a clock.. if you can visualize that :)
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    Momentum problem : bullet and chair

    This question sounds soo familiar. Is this from the RANDALL KNIGHT textbook: physics for scientists and engineers ? If yes, I have the solution somewhere..P.S is the full question about you being a physicist lawyer that's trying to prove your client innocent?
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    Graphing rotation & linear quantites

    What about the other responses? I'm not too 100% sure... would there be a point when velocty y would be 0? so it must be one of the sin or cos graphcs?
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    Schools Exploring Grad School Options with a Physics Degree

    The fact that you took physics in first year.. or do they look at the GPA only? I heard that they don't really care about the 1st year GPA, is this true? I want to go to grad school for psych but it doesn't even relate to physics...
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    Graphing rotation & linear quantites

    While working on her bike, Amanita turns it upside down and gives the front wheel a counterclockwise spin. It spins at approximately constant speed for a few seconds. During this portion of the motion, she records the x and y positions and velocities, as well as the angular position and angular...
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    Schools Exploring Grad School Options with a Physics Degree

    Hi, I'm confused about what grad school I'd like to go to.. I'm taking physics first year university and was wondering if this would give an advantage what-so ever into entering grad schools,.. or do they not lookat it at all?
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    How to Calculate Absolute Error in Moles for an Acid-Base Titration Experiment?

    I took the greatest possible error (18.59 + 12.85) then subtracted it by the maximum error (18.59 + 0.02) + (12.85 + 0.03) but i keep getting the wrong answer, am I suppose to convert the mL to M? (they're both different, but I can't find the mL for NaOh since I don't have the moles) ...
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