If all the points have equal weight, I'd say that if you start with (0,1) and (0,-1), the center of gravity of those two points is at (0,0). When you add the...
This posting was a mistake, so I deleted it. The correct posting is in "Centroid coordinates" ... (0,1) and (0,-1), the center ... point (-2,0), the center of ...
Given that 37! = 13763753091226345046315979581abcdefgh0000000, determine, with a minimum of effort, the missing digits a, b, c, d, e, f, g, and h. No...
Start multiplying it out, but: Skip 2, 5, and 10; Skip 12 and 15 and introduce an extra 18; Replace 20 with 2; Skip 22 and 25 and introduce 55; Replace 30 with...
... I would start by writing the factors and striking out the eight powers of 10 to deduce that h=0. The remaining digits a--g may be found by computing the...
As others have observed, there are actually 8 powers of 10 in 37!, so that h=0. Also, working mod 10, it is easy to calculate by hand that g=4. To finish up,...
Well, at least one person is interested. Also, this isn't the field I normally work in, and yet I may have to teach this stuff next year. So it's good practice...
I had a hard time explianing this to my brother Thursday night, and he had a helluva time finding holes in my words. Partly because this is a new puzzle I...
If you have a ping pong ball and a weight that with make it have neutral bouyancy in water, will it have neutral bouyancy in 5 feet of water? Meaning, you can...
In a message dated 2004-06-06 8:03:08 AM Eastern Daylight Time, ... i would think not. from my own experience with neutrally buoyant objects in water, such an...
... and ... this ... right. ... by ... so ... touching ... on, ... intact ... IT ... have a ... Put some gloves on, and pull out the clip. You won't be...
... of ... positions ... If I remember clearly, water hardly changes density when put under pressure. Aside from the negligible changes in density, then, the...
Jason...how darn elegant!!!!....that's really a poem..... Carlos ... As others have observed, there are actually 8 powers of 10 in 37!, so that h=0. Also,...
Putting on gloves and taking it out doesn't count. Nothing solid can touch the clip/straw at the beginning of the puzzle, except for what the clip/straw is...
... feet ... Now here's another part to the neutral buoyancy problem. Suppose you have five equal gears in a row no longer than 2 feet in length. The center...
put i in a glass of water "filled up to the bottom of the clip" put it in the freezer ....wait both the expansion of water and the contraction of steel should...
Two players take turns choosing one number at a time (without replacement) from the set {-4, -3, -2, -1, 0, 1, 2, 3, 4}. The first to obtain three numbers...
... Assuming that you mean that the three numbers chosen between the players sum to zero and not that three numbers chosen by one player sum to zero.... The...
... it. ... That's cool! How'd you come up with the solution? Have you tried it yet? Is there reference to this trick anywhere on the net? Another puzzle...
Can u find numbers N,P,Q,R,S,T,U,V,W such that the following 16 numbers are perfect squares? NP,N+P,NQ,N+Q,NR,N+R,NS,N+S,NT,N+T,NU,N+U,NV,N+V,NW,N+W Mansoor. ...
Do you mean that the player's first three numbers must total zero? (hardly) Or do you mean that any three of the player's three, four or five numbers total...
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