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#601 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-31 07:47:32
My idea was...
How so ever less may the bird weigh, the overall weight would still be greater than a tonne!!
#602 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-31 05:22:57
#603 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-31 05:18:37
Ricky's is the answer I would have gone for. It's purely qualitative, so I wouldn't say it counts as involving mechanics. Probably wrong guess:
That's being too HYPOTHETICAL mathsy!!
#604 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-31 05:14:53
I'll guess
TRAIN???
:
Did I mention TRAIN?
#605 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-31 03:13:42
What do you mean it's "no PJ"?
A PJ is a 'Poor Joke'!
Don't go on the name; they're really Funny sometimes!
This however is a LOGICAL Puzzle...
#606 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-31 03:10:50
No pyjamas.
Ha Ha 
#607 Re: Euler Avenue » Fermats Last Theorem » 2008-07-30 23:06:50
10 Mb??
Fermat was right when he wrote "..this space is too short to contain it.."!! 
I am interested to know if the theorem was valid even before it was proved?
Is there any corollary to the theorem?
Which other problems make use of Fermat's Last theorem??
I believe it was the EASIEST problem for anyone TO UNDERSTAND ((in contrast, Reimann's Hypothesis is something which needs a good deal of knowledge of Set Theory)) and yet to be the TOUGHEST problem TO SOLVE (till '94)!!
#608 Re: Introductions » About me.. » 2008-07-30 21:13:17
Yes! There's lot of Mathematics! In Math, you have partial derivatives, laplace transforms, fourier transforms, z-transforms, multiple integration, vector integration and much more....!
Then, some of these are used in solving problems of Electronic Circuits!
The most interesting parts of the field however are Microprocessors and VLSI (Very Large Scale Integrated Circuits)!!
That's hardcore Computer Hardware!!
Its fun reading about the Evolution of Computers and its really Adventurous to study how our Computers work with such a Speed and Accuracy!!
#609 Re: Dark Discussions at Cafe Infinity » Where can I practice my cryptology? » 2008-07-30 19:41:08
You could be a little nicer there, Z.
I excuse myself... MathsIsFun!
No Offense please..:|
#610 Re: Help Me ! » Calculus » 2008-07-30 16:56:53
Oh!
I don't know why i keep on making such silly mistakes??
#611 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-30 16:52:37
To Ricky: As i've said earlier, this question does not involve any knowledge of Mechanics!!
I bet that when i'll tell you the answer, you'll all be like "O F, that was easy!"
#612 Re: Puzzles and Games » Interesting Puzzle.. » 2008-07-30 16:47:48
I told you that its NO PJ!
But your answer was really funny! Ha Ha Ha
#613 Puzzles and Games » Interesting Puzzle.. » 2008-07-30 07:43:23
- ZHero
- Replies: 20
This one's an interesting puzzle and DOES NOT involve any MECHANICS!! Please don't forget to hide ur answers..
There's a Bridge 2.4 km long with a load handling capacity of exactly 1 tonne and is bound to collapse if load increases by even a single gram than a tonne!!
A bus, loaded fully with passengers, of weight exactly a tonne is crossing over the bridge. At exactly 3/4th of the length of the bridge a Crow comes (out of the Blue) and sits on top of the Bus!
But to everyone's surprise, the Bridge doesn't collapse and the bus crosses it safely!!
Why??
Its no PJ!
#614 Re: Help Me ! » i have a question for this problem » 2008-07-30 07:22:34
You'll get..
now put the values of t in the range (0.15, 1.15) and find respective values of P and plot the graph accordingly...
#615 Re: Help Me ! » i have a question for this problem » 2008-07-30 07:05:35
That's not right!
It should be..
now, you can use the formula
#616 Re: Puzzles and Games » Janes quizzes » 2008-07-30 01:44:22
May be Johnny!
I'll have to check google for this!!
#617 Re: Help Me ! » Help With A Maths Puzzle! » 2008-07-30 01:40:36
Just noticed.. Jane you were too too close! Just a '1' in place of '5' in the last one!!! 
#618 Re: Help Me ! » Help With A Maths Puzzle! » 2008-07-30 01:38:07
To get the number below the two boxes above, follow the procedure below..
Let the two numbers in the top boxes be 'a' and 'b'. Multiply 'a' and 'b' and call it 'x'. Then, divide 'a' by 3 and multiply it with 'b' and call it 'y'. Now just add 'x' and 'y' and you get the number in the bottom centre box!!
That's only just one of the multiple possibilities...
#619 Re: Help Me ! » Help With A Maths Puzzle! » 2008-07-30 01:33:12
I've got it (i believe)!!
Its 56!!
#620 Re: Puzzles and Games » Janes quizzes » 2008-07-30 01:26:03
I'd like you to tell me what 'one small thing' i didn't get right?:
i've tallied JohnnyReinB's and my answers but couldn't see much difference!?
Anyways, i must be given +1 for providing extra information in the answer!! JJ
#622 Re: Puzzles and Games » Janes quizzes » 2008-07-29 03:46:16
If we assume that every (active) member visits the forum (at least) once in two days; then there's no need to wait longer than this!!
There are many enthusiasts (like ME) waiting for new puzzles and questions everyday!!
#623 Re: Introductions » Hey!! » 2008-07-29 03:28:47
Visit the thread "brain teasers" in 'Games and Puzzles' for more about his (or her??) sig...
#624 Re: Puzzles and Games » Janes quizzes » 2008-07-29 03:05:47
Well.. I've come to know all the answers (via the Google)! May i post them (but i obviously don't want any credit for them)!??
BTW: its vvv nice to see you back again! Meanwhile, i've posted replies to one or two posts; do comment if the answers are correct or not (i'm never sure you see)!!! 
#625 Re: Help Me ! » Calculus » 2008-07-29 00:17:20
Slope of the tangent at any point to the given curve is given by
while the slope of the given line segment y=2x+5 is 2. For the tangent to be parallel to the given line, their slopes must be equal.Hence, 6x-7=2 which gives x=3/2. Putting this in the equation of the curve, we get y=-7/4.
Hence, equation of the required tangent is the equation of a line passing through (3/2,-7/2) and with slope 2.
i.e. y=2x-19/4 and the equation of the normal is the line passing through the same point with slope -1/2 i.e. 2y=-x-1 !