Recent content by ll Source ll

  1. L

    Acceleration due to Gravity problem.

    Thanks Dick, you helped me out a lot i just have one small question though. Sin^2(x) * sin^2(x) = sin^4(x) ...right? :) Or anyone else, in case Dick isn't here could answer.
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    How to Solve cos2x - sinx = 1/2 for [0,2pi)?

    So then 1 - 2sin^2(x) - sin(x) = (1/2) [-(1/2)] -2sin^2(x) - sin(x) + (1/2) = 0 Quadratic Formula? I tried it and got sinx = (1 +/- Sqrroot(5)) / -4) x = -54 and 18. Somehow that doesn't seem right because radians aren't that big on...
  3. L

    How to Solve cos2x - sinx = 1/2 for [0,2pi)?

    cos2x - sinx = (1/2) for [0,2pi). How does that have misplaced exponents and variables? Would Writing parentheses help? I am really sorry for the confusion and my mistake. Cos(2x) - sin(x) = (1/2) for [0,2pi). Cosine of 2x minus sin of x equals 1 half for the range 0 through 2pie
  4. L

    How to Solve cos2x - sinx = 1/2 for [0,2pi)?

    Homework Statement Solve the equation: cos2x - sinx = (1/2) for [0,2pi). Homework Equations sin^2x + cos^2 = 1 The Attempt at a Solution cos^2(2x) - sin^2x = 1 1 = 1 Infinite Solutions?
  5. L

    Torque - Finding the unknown weight

    Thank you so much. So, SO much. I love you. In a non-gay way. <3
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    How Can Torque Determine the Weight of an Unknown Object?

    1. Homework Statement Torque is used to determine the weight of an object. A 10.0 m long pole weighing 20.0 N has its center of gravity 2.00 m from one end. An object of unknown weight is hung at the end opposite the center of gravity. With the object hanging at this end, the pole now balances...
  7. L

    Torque - Finding the unknown weight

    PLeASE IM BeGGING YoUUUUUUUUUUUUUUUUUUUUUUUUUU
  8. L

    Torque - Finding the unknown weight

    oh please anyone? my exams tommorow? I am sorry for being so naggy? any help AT ALL will be great. anything. I've been staring at this screen refreshing every 5 seconds.
  9. L

    Torque - Finding the unknown weight

    Homework Statement Torque is used to determine the weight of an object. A 10.0 m long pole weighing 20.0 N has its center of gravity 2.00 m from one end. An object of unknown weight is hung at the end opposite the center of gravity. With the object hanging at this end, the pole now balances...
  10. L

    Debunking the Myth of True Artificial Intelligence: A Logical Analysis

    Yes there are an INFINITE number of ways to greet someone. The human brain is not perfect, which separates it from a machine. Human logic isn't all logic, by that i mean, what you do doesn't have to be logical. If you see your friend and want to greet them, you could raise your hand in the hair...
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    Debunking the Myth of True Artificial Intelligence: A Logical Analysis

    I would like someone to tell me if the logic behind my theory is valid or if it isn't. My theory is this: True Artifical Intelligence is impossible. Because: Ok let's talk about programming at the most basic level. Let's use java. If i want to create a being from programming that...
  12. L

    Impulse Question (Really Difficult)

    sweet thanks dood! :) (I figured it out)
  13. L

    Impulse Question (Really Difficult)

    Homework Statement A bird is initially perched on a swing with a mass of 153 g. The bird has a mass of 52 g. The swing is 8 cm below the point of attachment to the top of the cage. The bird/swing are initially at rest. The bird takes off horizontally at 2 m/s. How high will the base of the...
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