Does the interstellar stewardess survive? (cool, hard and twisted math problem)?
829755
No Brain work required. \n\nInside the spaceship is an independent frame of reference, thus everything to everyone inside is happening at normal speeds, people are talking, walking and shooting stewardesses as normal, the bullet travels quickly to its target and she is shot and falls to the ground.\n\nNo Laws of light speed are violated because each set of actions takes place in that independent frame of reference.\n\nTo the outside universe everything taking place inside the ship (from an external point of view) is happening incredibly slowly, so slowly that we think the stewardess should be able to get out of the way - so we reach in with our multi-dimensional hand to help her - and in doing so become PART of that frame and everything speeds up to normal (and our observations of the outside universe show it sped up to chipmunk speed).\n\nSee that's why Light speed is such a killer for so many folks to understand. Light speed is independent of your frame of reference. It is ALWAYS the same speed, regardless of what YOU are doing, it doesn't CARE what you are doing and shows it's utter contempt for you, me and everyone else in the universe by doing what it does at only one speed.\n\nSimple!
732740
im curious how this helpful to both of us??\n\nlynns distance (neglect directions )is 20 km....but her displacement (a vector) is 2 km east....because going north 5 and them south 3 and south 2 later cancels out n/s distance and going 6 east but 4 west leaves with 2 east..draw it out\n\n\nthe UFO moved 10 km North, it moved 20 east but them 30 west, subtract to leave 10 West...so the TOTAL displacement is 20 km\n\nBUT use pythagorean for 2\n\n10^2+10^2=200, sqrt 200, leaves 14.14 km NW
850971
The diver would be experiencing 3 atmoshpheres at 99ft.\n\n33 x 3= 99
481629
This is only possible if Ben has been travelling at near the speed of light for the last 15 years and has only aged 3 years while back on earth Joan has aged 15 years \n\nHe was 9 and she was 3.\nNow he is 12 and she is 18.\n\nAlternatively his birthday is Feb 29th and the 15 years includes only 3 leap years, he is therefore only  3 birthdays older, while she has had 15 birthdays\n\nOr Ben comes from Planet Zog which takes 5 earth years to rotate around the Zoggian Sun. He started at age 9 Zog Years and Joan started at age 3 Earth Years. Now he is 12 Zoggian Years old and she has got the key of the door having just turned 18.\n\nOr he was 9 in 1991, she was 3. After 3 years he was diagnosed as having an incurable disease and was put into cryogenic deep-freeze until such time as a cure was found, thus he is 12 and frozen and she is 18 and warm.
474987
Ok lets look at the instant effects. The Earth is spinning at 1047 mph. If we were to suddenly switch directions our acceleration would be Huge! So how much is suddenly... 1 second? That means that it would be a whoping 2094miles/second^2 (if it was the same thats the same as slamming the breaks so it must be double if your going in full reverse). So you think we would go flying into space right? Partly We would be crushed instantly. Why? The Human body can only survive 12G's thats 12x the acceleration of gravity before we are crushed. The acceleration that would be experienced would be a little over 343874G's. We would be paper thin before we even cared about where we ended up.\nTo all those people who may see a mistake, if any, in my math, sorry.
1135961
in order to solve this problem, you need to work part (b) first before (a)\n\nb): you know gravity (g=32.2 ft/sec) acts opposite the rocket, so calculate, using:\n\nv_final = v_initial - 2*g*y_1\n\nyou know that the final velocity is zero (max height) and you are given the inital velocity. the negative sign is to account for the opposite direction of gravity. move the equation around to solve for y_1 (height from tower to max. height). then add 100 feet (to account for the tower) and you have your answer.\n\na): since you know your maximum height (from part b), substitute that answer for h. [*NOTE: remember to subtract 100 feet from your answer in part b, because t=0 at the top of the tower] You now have a quadratic equation and solve for t using the quadratic formula (you should know what that is). your answer will be the answer!\n\nThis prob is easy only because it worries upto the max height. if we had to worry about the falling down part, well thats another story.\n\n** i already worked out this prob, so if you want to ask more questions/verify your answer, just post an additional response and ill modify my question to answer it. GL!
626127
V = (v + u) / (1 + uv/c²)\n\nTry that. The velocities are quite high so relativistic. Haven't tried it yet though.\n\nNevermind, the velocites aren't nearly high enough to be relativistic. If it was km/s it would work.
154209
It doesn't end.  It goes on. If you took a line and ran it in any direction off the planet's surface it would just keep going into infinity,  if you could freeze time and walk on that screen,  you would never get to the end.  There is no end.
1135665
The possibilities are infinite...You can see everything from the "al-bridge-a" of your ship...Just "Googol" it to find out!\nIf he had Avogadro's number, he could discover the mole who's spying on him...\nSee you later; I have a leftover piece of pi in the fridge...(Pi are squared?  No, pi are round!)
850612
According to Hitchhikker's Guide, it is impossible to know the Question to Life, the Universe and Everything at the same time as the answer (42). So since we know the answer, we can never, ever know the question, for they cancel each other out and life as we know it will cease to exist and start anew.\n\nDeeep. . . .
826926
playing a simple game of catch invovles the quadratic equation. Im positive nasa uses the quadratic equation for determining flight angles and all that stuff.
942547
Can you please check you haven't made a mistake somewhere? I have just calculated (with 99% certainty) that there are no solutions to those equations with those restrictions.\n\nEdit - OK, I assumed you made exactly one mistake. By removing each possible word and trying to solve it, I discovered that removing 'SIGH' was the only option that gave an answer.\nt 1\nh 8\na 3\nn 7\nk 6\ns 5\ng 9\ni 4\nv 2\nwhere SIGH = 26, not 25. Then THANKSGIVING = 65.\n\nThat was actually a cooler puzzle that the original, assuming you made one mistake :)
616060
Yes, the probability of life happening is 1 because it happened.  I would guess that looking from the outside, the probability that someone named icarus62 typed the following "Apologetics...." at exactly [insert time here] using whatever type of computer, etc. is also arbitrarily small but it did happen. :)
889610
3.14159265358979 is as far as I have it memorized.  Yes, I'm a geek.  So your answer is 3.141592653589.\n\nSee?  Easy as pi!
746031
The only problem with your "spaceship with super strong armor" to be used to investigate the doughnut is that as you approach a black hole time slows down.\n\nThe closer you get to the black hole the more it slows down.  You would never actually reach the black hole.  And you would never get to see the doughnut at the centre of the accretion disc.
990921
MAJOR SPOILER\n\nI have heard that the numbers that keep appearing are coordinates to a small island near micronesia where nuclear testing was done.  The hatch houses the nuclear radiation or something and they have to keep pressing the numbers into the computer so the radiation can be let off safely.  However someone (possibly desmond) didn't put in the numbers and the radiation spewed out, and thats what brought down the plane.  which also means the sickness could be radiation poisoning!  Also two characters die.  Here's a clue.  They both were charged with drink driving
26879
there is a pretty convincing argument based on statistics, but that depends largely upon the assumptions one makes.  it is called the drake equation:\n\nNc = N * fp * ne * fl * fi * fc * fL\n\nwhere\n\n\nN represents the number of stars in the Milky Way Galaxy \nfp is the fraction of stars that have planets around them \nne is the number of planets per star that are capable of sustaining life \nfl is the fraction of planets in ne where life evolves \nfi is the fraction of fl where intelligent life evolves \nfc is the fraction of fi that communicate \nfL is fraction of the planet's life during which the communicating civilizations live\n\nand\n\nNc represents the number of communicating civilizations\n\ni snagged this from this page:\nhttp://www.activemind.com/Mysterious/Topics/SETI/drake_equation.html\n\nwhich explains what some reasonable estimates for these values are, and includes a little javascript calculator thingy so you can plug in your own values.\n\nif you use their estimates, the final result is that there should be around 1000 civilizations capable of communicating in the galaxy.\n\nhowever a lot of this hinges on the value of fl, which is the fraction of planets capable of supporting life where life actually evolves.  since we have no evidence to support any value for this parameter at all, it's all pretty moot.\n\nhowever, we have only just begun started exploring our own solar system, and there have been possible (though not conclusive) signs of life even the next planet over, on mars.  only time will tell, i suppose.