would an empty roller coaster and a full rollar coaster take the same amount of time for a single trip?
598399
Yes.  The full coaster may go down faster, but would lose momentum at the next upswing.  An empty coaster would reach the top of the next hill without the hindrance of gravity.
561734
The principle of conservation of energy is used in designing\na roller coaster. The kinetic energy will be converted into potential energy and the vice versa. Friction is overcome by energy supply initially. Design details will be a mechanical engineering problem.
7511
The slope can be calculated from the height and the drop for each roller coaster.  The velocity is usually listed as the maximum speed obtained.  Check out the site (and search pages) below:
456767
no.  Although if you plan on being on some roller coasters, I'd recommend putting it up.  Do you really want it all in your face so you can't see anything?
226075
My friends & I like to make this move on the rollercoaster, right at the spot where the camera is. \n\nWe take a teacup glued to a saucer & a pot, one will hold the cup while the other pours tea out of the pot\n\nOr try hands of cards glued together and pretend to be playing...\n\nFun pics.\n\nIf you are asking about making a toy rollercoaster move- the only thing I can suggest is "Gravity: It's The Law!"
454933
Yes, you will land in the same spot, but please be careful when you try that, don't slip on the floor after jumped in the air on a fast moving train. :-)
115763
Gravity states that if you drop 2 things at the same time, regardless of weight they would hit at the same time. Yet a larger mass rolling down a hill will gain more speed. Just watch the difference in speed from the skeleton & bobsled teams.
767389
If you were traveling at such a speed that an hour lasted 60 minutes, then you would be traveling at the same speed which the Earth rotates. That is the spped that we are all traveling at all times, even when we are sitting still.
87881
That's two questions.  Please ask the second in the section where it belongs, so we don't have to lose 2 (or 12) points just because you're lazy.\n\nOldest OUTdoor operating roller coaster:\n"Rutschebahnen" - Tivoli Gardens, Copenhagen, Denmark\nConstructed 1913 (CNN source is wrong - see correction below)\n\nFirst INdoor coaster: Space Mountain, Disney World's Magic Kingdom. 1975  (As much as I hate quoting Wikipedia: http://en.wikipedia.org/wiki/Notable_roller_coasters )\n\np.s. Confirmed that CNN is wrong by visiting a more authoritative source, The National Amusement Park Historical Association. http://www.napha.org/faq.html#WORLD'S%20OLDEST%20OPERATING%20ROLLER
332055
You know it is harder to pull a wagon loaded than empty and a lighter wagon is easyer to pull than a heaver one. What happens as the particle gets less mass with the same push. How fast does a particle go with no mass?? Infinity would be silly so they go at speed of light.\nYour spaceship must be less than the speed of light and when you run it is not simple addition as Newtonian Mechanics,..
11142
Spin the other direction at the same speed for the same amount of time.
740205
They both travel at the exact same speed.  This was recently verified here : http://www.newscientist.com/article.ns?id=dn3232
309283
Roller coaster rides require the smallest thing to go wrong and they will shut down. It is for the public's safety. In the event of a shut down, a castmember must walk to each car on the track and evacuate the passengers, or roll the cars into the station one at a time and evacuate there. Again, it is for public safety.\n\nThen the engineers must review the computer to determine what caused the shutdown, if it was a sensor or some other problem on the track or cars. The problem must be corrected and the track walked by a castmember to ensure it is ready for operation, then test cars are sent to ensure the failure does not occur again.\n\nIt is a very lengthy process, and again is done to ensure public safety. I'm sure you would rather skip a ride or two than put your family's safety in jeopardy.
23093
Universal is great and so is Islands of Adventure.  My husband and I have annual season passes.  Universal no longer has the King Kong ride but it does still have Earthquake and they now have Fear Factor Live which is really cool.  As for the "moving floor" it's called a people mover and they have the same thing in airports.  It just gets you from the parking area to the theme parks without having to actually walk.... but you can walk if you so choose.  I think they are great.  Considering all the walking you will do once actually inside the park... they are wonderful!
609366
Sure. If it's a roller-coaster stock.
506291
For the slower machine, it would take 3 times the length of time, 8*3=24min\n\nFor the faster machine, it would take 1.5 times, 8*1.5=12min
924224
No.  The design of the vehicle does not matter, it is the old e=mc^2.\n\nAs you accelerate, your vehicle gains mass, until, as you get closer to the speed of light, the mass gain approaches infinity, and it then takes an infinitely powerful push to overcome this infinite resistance.\n\nIn the case of the nested doll ships, if we use the external (larger ships), to begin the journey, you would find yourself in the strange position of continually needing greater power from ever smaller engines.