Gavran's latest activity
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GGavran replied to the thread B (Electric) current is not a vector quantity.The definition in the post #23 describes the equation $$ i=\frac{dq}{dt} $$ and whenever the equation is applicable the definition...
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GGavran replied to the thread B (Electric) current is not a vector quantity.Electric current is the rate of change of electric charge and it is a scalar quantity. A rate of change of a scalar quantity is a scalar...
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GGavran replied to the thread What does this equation mean?.I suppose you mean ## X^{-1} ## vs ## 1/X ##.
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GThanks all! I originally came up with this while pulling identical pairs of socks out of my dryer. What are the odds? If I do laundry...
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GIf you get four pairs the same, what are you left with for the fifth pair?
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GI get the following. There are 945 possibilities for the 5 pairs. The probability of getting 0-5 pairs the same, given as a numerator...
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GGavran replied to the thread B A Little Probability Puzzle.$$ \begin{align} \{\{1,2\}\}\,\,\,\,\,\,\,\,\,\,&n_{1,1}=1\nonumber\\ &n_{1,0}=1-1=0\nonumber\\...
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GYou should be careful. That equation should be more clearly written as ##\tan(\alpha) = X/Y##. ##\tan(\alpha)## is the tangent function...
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GGavran replied to the thread B A Little Probability Puzzle.You are right. ## 1-(1-P(B_5))^m=0,9 ## ## m=\ln(0,1)/\ln(1-P(B_5))\approx2175 ## where ## P(B_5)=1/(9\cdot7\cdot5\cdot3\cdot1) ## is...
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GThat last answer is not right. The correct answer is 2175. Also, does your formula give p(4)=0?
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GGavran replied to the thread What does this equation mean?.
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GGavran replied to the thread B A Little Probability Puzzle.$$ P(A_n)=(2!)^n(10-2n)!\frac{5!}{(5-n)!n!}n!\frac{1}{10!} $$ ## A_n ## - the n particular pairs are pulled out in one repeat ##...
