Recent content by Edgar92

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    Rocket launched off of a ramp

    Homework Statement The Lower Machiavellian Space Shuttle, having a total mass of 3500kg, is about to make its' debut launch. Rather then using a rocket engine to launch the shuttle, the Machiavellianans' use a large compressed spring, having a spring constant of 1600N/m. If the spring can be...
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    How do I solve this problem without knowing the time?

    a=v/t now that you have t and have v aswell, just sub in the appropriate values and you are done. I'm done for the day but that should be enough to finish the rest of this question
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    How do I solve this problem without knowing the time?

    Be sure to post when your done so I know when to stop lol
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    How do I solve this problem without knowing the time?

    I don't have a calculator but the equation is right height is equal to distance use the equation d=v*t since you know 2 of the 3 variables t=d/v try it and you should be done
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    How do I solve this problem without knowing the time?

    Set that formula equal to the gravatational potential equation which is mgh but it's like I said, m is irrelevant and u do no g, all you need is h
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    How do I solve this problem without knowing the time?

    The only two equations you need are 1/2mv^2 kinetic and mgh gravitational if the ball has reached it's max height then there is no kinetic so if you make these equations equal to each other, the masses will cancel out, you no your speed v, you no gravity g, all you need to account for is...
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    How long will it take for polonium-218 to decay to 30%?

    The exponent is divided by 3.1, not the equation
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    How long will it take for polonium-218 to decay to 30%?

    I realize this is simple but I am forgetting and don't have my textbook
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    How long will it take for polonium-218 to decay to 30%?

    1. The problem statement, all variables a sample polonium-218 decays at A(t)=100(.5)^t/3.1 determine how many minutes it will take to decay to 30% 2. Homework Equations log(a)/log(b) 3. The Attempt at a Solution .3=100(.5)^t/3.1 .3/100=.5^t/3.1
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    :trigonometric identity question

    URGENT:trigonometric identity question Homework Statement tan2x+cos2x+sin2x=sec2x *the 2 stands for squared since I don't know how to make the squared symbol appear on a compter Homework Equations http://www.analyzemath.com/Trigonometry_2/Trigonometric_identities.html stuff from...
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    How Far Do the Bird and Arrow Land After Collision?

    Finished! Denverdoc, you are my hero is there a way for me to post how helpful you've been or do you just want a thank you
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    How Far Do the Bird and Arrow Land After Collision?

    Sorry to post again but I read and made that last post at work. I am assuming you mean g is gravity(9.8) but that gives me 3.53 s. am I just supposed to use d=v*t to solve.
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    How Far Do the Bird and Arrow Land After Collision?

    Thanks man, you been a great help. I was stressing out about this before, but you really saved my @$$
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    How Far Do the Bird and Arrow Land After Collision?

    yo maybe we can finish my question first and then move on to yours
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