QUOTE(Critical_Fallacy @ Dec 29 2013, 06:42 PM)
Ahh, that's why -3 appears. Thanks much, my brain has been aloof.Ask a Mathematical Physicist
Ask a Mathematical Physicist
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Dec 29 2013, 11:03 PM
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Dec 29 2013, 11:06 PM
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QUOTE(dividebyzero @ Dec 29 2013, 11:03 PM) Ahh, that's why -3 appears. Thanks much, my brain has been aloof. −1 −1 −1 = −3 |
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Dec 30 2013, 12:09 AM
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QUOTE(crazywing26 @ Dec 29 2013, 07:00 PM) Critical_Fallacy, I do wonder how can you think in such brilliant ways of solving mathematical problems? In ways that usually people would not thought of yet effective. Is it with sufficient practise or critical thinking? Just asking only If I have come up with effective tactical solutions, it is by fighting on the shoulders of Titans! ![]() This post has been edited by Critical_Fallacy: Dec 30 2013, 10:30 AM |
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Dec 30 2013, 08:19 AM
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3,197 posts Joined: Mar 2007 From: Kuala Lumpur, Malaysia |
Wow. AFK for a couple of days and so much has been discussed!
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Dec 31 2013, 05:28 PM
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Hi Flame Haze, RED-HAIR-SHANKS, maximR, crazywing26 and v1n0d,
Can you simplify this equation? ![]() |
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Dec 31 2013, 05:50 PM
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654 posts Joined: Apr 2013 From: Planet Earth |
QUOTE(Critical_Fallacy @ Dec 31 2013, 05:28 PM) Wow, this is simply stunning! It discombobulated me momentarily and even I have no idea on where to start to simplify it. But, I'd like to see if anybody else can post the correct workings. By the way, I can tell that roughly all of the terms in the equation is unknown, but, other than omega itself(ω), does the Η, N and Y is an unknown too, or are they a part of the Greek alphabet? I guess that we can replace H(Eta) with 8, N(Nu) with 50, and Y(Upsilon)with the value of 400 since each of those 3 alphabets has it's own value in the Greek numerals. Because, if we just treat them as an unknown, then the equation will be harder to simplify compared with the presence of a few numerical values. Mostly I'm wrong, but, anybody willing to correct me and guide me in this question? |
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Dec 31 2013, 05:53 PM
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QUOTE(Critical_Fallacy @ Dec 31 2013, 05:28 PM) Is it the answer:» Click to show Spoiler - click again to hide... « Brilliant & Interesting May I share it out later on my FB? This post has been edited by ystiang: Dec 31 2013, 06:09 PM |
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Dec 31 2013, 05:56 PM
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Critical_Fallacy I don't think I can , but I'll leave it to the others to come up with a simplification .
I've been away to study STPM Kinematics and Dynamics . I must say that STPM Physics is on a whole new level compared with SPM Physics . Here's one question which I need help on : Two objects with masses m1 and m2 have the same kinetic energy . What is the ratio of the momentum of mass m1 to momentum of mass m2 ? - On a sidenote , I've finally studied Sequences and Series using sigma notation and only now do I comprehend the posts about formulae for the series of squares , cubes , etc . And I saw many cool tricks to come up with a simple formula for a sequence ! I'd like to get First Term and Second Term STPM Maths T books alongside your printed tutorials and start working on them , if I can finish those I think I'd be ready for A Level Maths and a little bit of A Level Further Maths . This post has been edited by maximR: Dec 31 2013, 06:10 PM |
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Dec 31 2013, 05:57 PM
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Dec 31 2013, 06:05 PM
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QUOTE(ystiang @ Dec 31 2013, 05:53 PM) Is it the answer: Wow, give yourself a pat on the back! » Click to show Spoiler - click again to hide... « Brilliant & Interesting, may I share it later out on my FB? |
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Dec 31 2013, 07:41 PM
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QUOTE(maximR @ Dec 31 2013, 05:56 PM) Two objects with masses m1 and m2 have the same kinetic energy. What is the ratio of the momentum of mass m1 to momentum of mass m2? From here:![]() It is not difficult to see: ![]() Simplify it: ![]() |
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Dec 31 2013, 07:48 PM
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QUOTE(ystiang @ Dec 31 2013, 05:53 PM) Brilliant & Interesting May I share it out later on my FB? QUOTE(maximR @ Dec 31 2013, 05:57 PM) QUOTE(RED-HAIR-SHANKS @ Dec 31 2013, 06:05 PM) Wow, give yourself a pat on the back! |
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Jan 1 2014, 12:54 AM
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Critical Formula #1 :: Whole Powers of Numbers
The power (aka exponent) of a number says how many times to use the number in a multiplication. For example, . |
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Jan 1 2014, 01:55 AM
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QUOTE(maximR @ Dec 31 2013, 05:56 PM) I've been away to study STPM Kinematics and Dynamics . I must say that STPM Physics is on a whole new level compared with SPM Physics . Here's one question which I need help on : Have you learned the projectile motion in two dimensions in STPM/A-level Physics “Kinematics”? ![]() |
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Jan 1 2014, 10:16 AM
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QUOTE(Critical_Fallacy @ Dec 31 2013, 05:28 PM) Haha! Looking at the choice of variables and your previous 2013 question, I figured it'd be a new year wish!Looks like ystiang has beat me to the answer though. |
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Jan 1 2014, 10:19 AM
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Critical Formula #2 :: Laws of Exponents
These laws are important throughout SPM and Pre-Calculus, so mark a note on them. ![]() ![]() ![]() ![]() ![]() ![]() |
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Jan 1 2014, 10:49 AM
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:-)
This post has been edited by delsoo: Jan 1 2014, 08:18 PM |
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Jan 1 2014, 11:37 AM
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QUOTE(delsoo @ Jan 1 2014, 10:49 AM) Can anyone guide me to the ans I square? Btw this is my question and working. Can you figure out which part is wrong? That is not the Total Area, or specifically, your triangle area of the side of the pyramid is incorrect! |
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Jan 1 2014, 12:01 PM
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Jan 1 2014, 12:42 PM
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QUOTE(Critical_Fallacy @ Jan 1 2014, 01:55 AM) Yes , this took the most time as I had to play with the equations and think about the different cases for the concepts to sink in . For example , the object that is projected at an angle doesn't accelerate in the horizontal direction at all . Another thing which I want to point out ( which is incorrectly stated in SPM ) is about the sign of g in kinematic problems . |
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