what drags on a ship in space?
346376
Inertia.\n\nA body at rest tends to stay at rest.  It needs energy to get it moving.  Once moving in a vacuum, it will continue on that course at that speed until something acts on it to change it's speed and direction.  This might be a planet or star's gravity, or a rocket,  or some such.\n\nAccelerating hard to a given speed takes more energy than accelerating slow.  It would take more energy to get a rocket going 1000 mph in 30 seconds than it would to get it going that fast in 30 hours.  The same principle governs your car, and is the reason that you'll get horrible gas mileage if you take off like a jackrabbit to get to 60 mph, vs. accelerating slowly and gently.
1130182
Um... I think maybe pull... if something is rotating/turning it is creating it's own little gravity field (I think!) therefore making it easier to pull.  I'm no scientist but this is an educated guess.
1018278
that would depend on the velocity of the craft, the velocity the at you were pushed out with respect to the velocity of the craft, and what near by celestial or terrestrial bodies were near, to influence your movement with their gravitational pull...  if you wre set outside a ship, with zero velocity, and left, out in deep space... you would remain essentially motionless... if the same were done to you near the earth, you wold fall to the earth.. if you were pushed out the side door of the space shuttle while it orbited... you would most likely orbit several time before your orbit decayed and you would have a incredibly painful reentry... as short as the pain might be...
651719
Mass.\n\nStuff which weighs a lot sucks other stuff towards it.\n\nIt's the sun's mass which keeps the Earth from flying off in a straight line into space.\n\nAnd it's the Earth's mass which pulls us towards its centre.
79516
engines for space craft don't need to constantly exert forward thrust to keep going, like airplanes. They need to to escape the earth's gravity, but once cleared, they can keep going on forward momentum, using brief propulsion to correct the course of the space craft. \n\nMars and the moon cannot use gasoline based craft, there's no oxygen to burn, so they likely need electric motors, maybe solar powered. Not exactly sure on this but I would say an electric motor of sorts.
677923
Drag is the force of the air which interferes with the speed of the plane
163543
Since G-Force is a measurement of acceleration, if the spaceship you are in accelerates in space you can feel it.
605330
well, if an object is moving, there must be some physical force applied to it - magnetic field, static electicity, pull from a sting, air pressure from a fan.
508347
It needs air to fly.  However, it can use very thin air.  One idea for using the space plane is to fly it out of the atmosphere, where its engine will cease to function.  The plane then glides as far as it can outside the atmosphere.  As it begins loosing altitude (because it is on a suborbital trajectory) it reenters the atmosphere and the SCRAM jet engine will work again.  It keeps skipping across the top of the atmosphere this way until it reaches its destination.\n\nThis trick saves a lot of fuel because aerodynamic drag is minimal while the plane is outside the atmosphere.
1080985
Spaceships run on vartiginits, small particles that combust with oxygen.  As a result, the timbingdots varoomitize the craft, propelling it with maximum force out of Earth's atmosphere.  Tell that to your teach and earn a great grade!
20423
No - The Starship in Star Trek travels at faster than speed of light (warp factor)and almost instantly reaches those speeds when they engage warp drive. If ,in reality, it were ever possible for a propulsion system to do that - the g-forces we would experience from standstill to speed of light would crush us instantly. You would have to have to some way of overcoming that for us to survive which would break the laws of physics as it stands at moment.
985453
When it's falling and reaches a velocity where the force from drag is equal to the force from gravity. Simply put, it doesn't speed up any more.
130717
A space craft is a vehicle that travels once in space. A   rocket is just a big, hot engine that is used to propel the space craft outside of Earth's gravitational pull. \n\nGood Luck!
215867
The ejection of water WILL effect the shuttles attitude (direction). Any mass accelerated out will have an equal and opposite force against the shuttle (Newton's laws). But as it happens, the on board gyroscope detects minor forces causing permutations to the craft and compensates with thrusters.
520546
The sail acts like a wing that creates a certain forward force on the boat, regardless of its forward speed.  If the resistance to the motion (mostly water drag) is low enough, the boat can easily go faster than the wind.  Certain ice boats (with only runners for drag) have exceeded 100 mph with a 20 mph breeze.
5054
Ok. The guy or chick above me just lied to you. Their is such government funding for that kind of "transportation". Not all space junk is magnetic. \nSpace junk travles at a viriety of speeds. It also depends on which atmospheric zone it is in. There is only one way for us to stop space junk, that is to stop sending things in to the atmosphere! It is simple as that. Sending things such as space shuttles is killing our ozone as well. They want us to stop but they are helping a big part as well. Also they want to fine people for littering, well look at them letting space shuttle debrie fly off in to our atmosphere! It is as simple as that.
974729
Gravity. Water doesn't seek its own level on the Space Station, it forms a ball-shaped blob.