Recent content by Superman2

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    Plen: Skating Robot - Amazed by Tech Innovation

    IT IS A HOAX! if u watch closely he is gona fall over some 5 times but doesn't that proves its a fake. I mean fall over that's NOT part of the demonstration of his balancing skills, but he is gona fall over for real. I think it is prob a control line hoax where he is supported by thin...
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    Resonance frequency of an object

    hi this is not physics homework I really need to find out the natural frequency of a window size glass so that I can brake it with a couple of speakers. this is not a prank joke either. I need a practical way to find it help please. So far all i know is that the frequency is low by hitting it...
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    What Angle Should a Cannon Be Set to Hit a Target 400m Away and 30m Above?

    The solutions in the beginnins solve different stuff including t i think. in the last solution, if the bullet initial velocity is 1000m/s and the target is at point (3000, 4000) then, the equation solves the firing angle. Its a little hard to explain what it does but here's a tip. read it...
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    What Angle Should a Cannon Be Set to Hit a Target 400m Away and 30m Above?

    yes t is time look here http://www.intel.com/education/unitplans/physics/lessonplans/physics_motion.htm it shows it in the last solution in the page.
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    What Angle Should a Cannon Be Set to Hit a Target 400m Away and 30m Above?

    thanks cool i solved it, it was pretty damn long
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    What Angle Should a Cannon Be Set to Hit a Target 400m Away and 30m Above?

    A cannon that shoots projectiles at 100m/s must hit a target 400m away and 30m above the ground. What angle must the cannon point at in order to hit the target? I have two functions: x = V*cos(theta)*t, where V = initial velocity, and y=V*sin(theta)*t - (g*t^2)/2 where g = gravity's...
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