Recent content by ][nstigator

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    Picard Iteration, with a 2nd order ODE

    Homework Statement Ive been told to perform 2-3 Picard Iterations on the following problem Homework Equations y'' = 6y^2 With initial conditions: y(0) = 0 y'(0)= -2 The Attempt at a Solution In class we've gone through how to perform picard iterations and it has been easy so far...
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    How Do You Calculate the Fraction of Ethylene in a Copolymer?

    Sorry I think I posted this in the wrong section. My apologies
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    Chemistry Materials Question - Weight % Fraction

    Heres a question I am stuck with Crosslinked polymers consisting of 62 wt% ethylene and 38 wt% propylene may have elastic properties similar those for natural rubber. For a copolymer of this composition, determine the fraction of the ethylene mer. Express your answer with three decimal...
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    How Do You Calculate the Fraction of Ethylene in a Copolymer?

    Heres a question I am stuck with Crosslinked polymers consisting of 62 wt% ethylene and 38 wt% propylene may have elastic properties similar those for natural rubber. For a copolymer of this composition, determine the fraction of the ethylene mer. Express your answer with three decimal...
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    Help Needed: Solving Trig Equation Involving Arcsin & Arccos

    Show that \arctan{\left( \frac{x}{2} \right)} = \arccos{\left(\frac{2}{\sqrt{4+x^2}}\right)} \ \mbox{for x}\epsilon\mbox{R} ..is the question, character for character :frown:
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    Help Needed: Solving Trig Equation Involving Arcsin & Arccos

    Yup, I definitely copied the problem down correctly... weird huh :(
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    Help Needed: Solving Trig Equation Involving Arcsin & Arccos

    Hey guys, got a small problem and need some help :frown: Homework Statement Show that \arctan{\left( \frac{x}{2} \right)} = \arccos{\left(\frac{2}{\sqrt{4+x^2}}\right)} \ \mbox{for x}\epsilon\mbox{R} The attempt at a solution Honestly I am pretty stumped from the very beginning...
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    How Do You Calculate Impulse When a Satellite Changes Direction?

    I don't know whether I got this right, but something seems strange about my answers. Teacher didnt help much :( A satellite of mass 2.40 x 10^2 kg moving in free space at a velocity of 6.00 x 10^3 ms^-1 is struck by an unknown object that causes it to be deflected onto a new path at right...
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    Yr 12 Maths 1 Help - Get Assistance for Horizontal Tangents & Normals

    I don't quite understand 2 :( Edit:oops soz, ment to edit and get rid of the part where I said "where do u get k from" Edit2: aw crap, I still have no idea for those questions
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    Yr 12 Maths 1 Help - Get Assistance for Horizontal Tangents & Normals

    I don't quite understand 2 :( and where do u get k from?!
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    Yr 12 Maths 1 Help - Get Assistance for Horizontal Tangents & Normals

    Im havin some real problems with my maths :( I am behidn coz I went on a holiday for easter. I have a test tomorrow and I really need help :frown: If anyone could teach me how to do these sort of questions it would be much appreciated. 1. Find all points of contact of horizontal tangents...
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    Solving Equations of Motion: When Will 100g Mass Overtake 1.5kg Shot Put?

    Two physics students conduct the following experiment from a very high bridge. Thao drops a 1.5kg shot put from a vertical height of 60m while at exactly the same time Benjamin throws a 100g mass with an initial downwards velocity of 10 m/s from a point 10m above Thao. At what time will the...
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    Solving for x: Graph of y=|2x|-|3-x|

    intersects at (1.6666666666666,2) and (-5,2)
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    Solving for x: Graph of y=|2x|-|3-x|

    1a Solve for x: |3x+2|=2|3-x| Done that part b Sketch the graph of y=|2x|-|3-x| and hence find all solutions of |2x|=|3-x|+2 I have sketched the graph however I don't know what to do for "and hence find all solutions of |2x|=|3-x|+2" Please help :D Any help would be much...
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