Recent content by cocoon
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Graduate Avg. Num. Probes to Insert in Hash Table w/ Random Collision Res. Strat.
Oh, ok that wasn't too hard. What if \lambda = 2? Oh wait \lambda <= 1 and if \lambda = 1, that'd be infinity, which is correct. Man... still don't get it. I still think of \frac{1}{1-\lambda} as (number of total cells) / (number of empty cells), but I guess I see it as a geometric series too.- cocoon
- Post #3
- Forum: Set Theory, Logic, Probability, Statistics
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Graduate Avg. Num. Probes to Insert in Hash Table w/ Random Collision Res. Strat.
Hi, I'm reading Data Structures and Algorithm Analysis in Java (Second Edition) and I'm on page 178, if anyone owns the book. I know It's a computer science book and this is a math subforum, but the question is largely a mathematical one involving probability. You just need to understand what a...- cocoon
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- Collision Probes Random Table
- Replies: 3
- Forum: Set Theory, Logic, Probability, Statistics
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Angular velocity of a Rod after a Ball hits it.
welp, guess i have to hit the books haha- cocoon
- Post #6
- Forum: Introductory Physics Homework Help
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Angular velocity of a Rod after a Ball hits it.
I remember conservation of linear momentum now from earlier this semester. I think I got it now. If not, then please just tell me what to do haha... let p be linear and L be angular momentum. before collision, p_c + L_h = m_cv_c + I_hw_h = 1*2 + 0 = 2 and after collision, L_{h+c} =...- cocoon
- Post #4
- Forum: Introductory Physics Homework Help
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Find acceleration of a Block within a simply pulley system.
bump... picture of problem lol http://img340.imageshack.us/img340/690/18485819.jpg- cocoon
- Post #2
- Forum: Introductory Physics Homework Help
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Find acceleration of a Block within a simply pulley system.
Homework Statement The figure shows two blocks suspended by a cord over a pulley. The mass of black B is twice the mass of black A, m_b = 2m_a = 2m. The mass of the pulley is equal to the mass of black A, m_p = m_a = m, the radius of the pulley is R. The blocks are let free to move and the...- cocoon
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- Acceleration Block Pulley Pulley system System
- Replies: 3
- Forum: Introductory Physics Homework Help
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Angular velocity of a Rod after a Ball hits it.
Homework Statement A horizontal bar of mass 3.0 kg and length 1.0 m is free to rotate about a vertical axis through its center. A clay blob of mass 1.0 kg traveling at a velocity of 2.0 m/s in the direction shown collides with the end of the bar and sticks to it. Find the magnitude of the...- cocoon
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- Angular Angular velocity Ball Rod Velocity
- Replies: 6
- Forum: Introductory Physics Homework Help
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Angular Momentum, Torque, and Acceleration for a Moving Body
I don't understand that either. I didn't write that. I wrote lim r = <inf, inf, -inf> Variables in bold mean vectors. I got that from my Linear Algebra book. And inf is short for infinity. <x, y, z> is a vector with x, y, and z components.- cocoon
- Post #11
- Forum: Introductory Physics Homework Help
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Angular Momentum, Torque, and Acceleration for a Moving Body
L = m* (r x v) find r by integrating v then find L t = r x F = r x m*a find a by taking the derivative of v solve for t using r from before no, because t and F are clearly non-zero lim r = <inf, inf, -inf>- cocoon
- Post #7
- Forum: Introductory Physics Homework Help