Recent content by reisada

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    Calculus 2 Book: Advice for Portuguese Students

    Hello I am having calculus 2 at university in my country ( portugal ). The topics are basically double and triple integrals all the way through stokes. Do you guys have any advice on a book that could help me study this course? Thank you very much and I am sorry about my english
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    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    ok so i restarted the exercise and now i got an answer, can you guys please try to see if this is the correct answer? because this exercise is not from any book with solutions so this is what i did: x=vocos60t y=vosin60t+5t^2 vosin60t+5t^2=0 ( when it is vertically at the same spot...
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    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    aha , now ill try to do the position/time which is: r(t)= vocostetat ex + vosintetat - 5t^2 ey now if i find the zeros of this function i can get the time right?EDIT : damn this way i still don't know the vo...
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    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    well first of all let me repost :D the parametric equations are : x=vo*costeta*t and y=vo*sinteta-5t^2 then when vo*costeta*t=5, , when 5 is the reach, we can find the vo vo=5/0.5t but now how can i find the time for this equation? am i going well?
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    Projectile Equation Help: Finding Velocity for Water Thrown at 60 Degrees

    english is not my native language , ill do my best Homework Statement someone wants to throw water to a flower that is to the distance of 5 m and at the same level as the place where the water comes from. air resistance doesn't count what is the velociity of the water so that it hits the...