zero-g is the effect of free fall to an object but not making it.w/o a mass to fall to is there 0 G in space ?
347841
The astronauts would be in zero-G for almost the entire trip causing the negative effects of weighlessness on their bodies.\n\nThe accereration of the spacecraft would indeed negate the problems with Zero-G by temporarily creating artifical gravity.  The problem lies in the fact that with the limited amount of fuel on the spacecraft, acceleration would only occur while the the engine was on. (a very short time with a chemical rocket)   \n\nOne solution would be to use a a drive that will burn during the entire trip.  One such drive is an ion drive (used on the recent Deep-Space One spacecraft to visit a local asteriod).  This drive would acclerate for most of the trip there creating a small amount of artifical gravity.
656369
I was want to make something abundantly clear,\nTHERE IS GRAVITY IN SPACE! (despite what "keelahkat" says).\nGravity is a force of attraction acting between two masses at a distance...any distance.\n\nThe only way one would experience true "zero gravity" would be to travel an infinite distance away from all objects in the universe with mass.
858740
I assume you mean on Earth where the gravitation constant (g) is 9.8 m/s²\nF = mg\n\n300 = 9.8 * m\nm = 300 / 9.8\nm = 30.6 kg\n\nIf you are using a rounded value for g (10 m/s²), you will come up with a mass of 30 kg.  This might be the intended answer if they want you to do it in your head.
42452
Tell them that the mass is the actual ammount of stuff(matter) in a given object.  Weight is the force of gravity pulling on the stuff (mass or object).  The gravity is caused by the ammount of mass in the other object.  So on earth it has a constant mass so the ammount gravity on an object is constant.  Therefore on earth we can measure the mass of an object using its weight.
939985
Well, yes, the gavity is pulling you down, and you are not moving. So you are subjected to an acceleration and are not moving.\nMind you, one can argue that the *resulting* force is zero, as the ground is reacting with an equal and opposite force to your weight; if you take it that way, to have an unbalanced force should result in motion.
324067
No. Gravity has to do with the mass of objects--you have some too.
877416
earth is weightless in space. \n but your concept is interesting as applied to mass. gas also has mass so I do not think anything ever disappears. it just changes form. the gravity of the earth is what causes "weight" so the gravity of earth hangs onto the gases that develop and we all may strangle in them, but the earth and its atmosphere inclusive do not lose mass overall. saturn is a planet whos major mass is gases with a tiny ball inside of solid rock, about the size of earth. maybe we will gradually warm to a  huge gasball with a tiny rock in the middle with one person left on it smoking a cigarette and sitting in his motorhome with the motor running.
925295
Since anti-gravitation is still SF, the only way I can think of is to take a steep dive with an aeroplane. You won't be weightless in relation to the earth, but in relation to the plane it seems like so.\nAnother situation may appear when you actually could get to the center of the Earth. There are still gravitational forces, but you are pulled equally in every direction by them, so you would be floating.
1095815
Mass is the amount of matter present in a body and is an intrinsic property of the body. Mass of an object remains the same always at any place.\n\nWeight on the other hand is the force which a given mass feels due to the gravity at its place. Weight is measured in units of Force like Newton (which is the SI unit of Force).\nIf your mass is 60 kgs then your weight is approximately 60 x 10 = 600 Newtons. This is because\n\nForce = mass x acceleration (From Newton's second Law)\n\nThus, weight = mass x acceleration due to gravity
10866
Get on an elevator. Press the "down" button. The moment it starts to go down, jump up. You'll be in free fall (at least for a moment) which will simulate zero gravity. There you go - absolutely free.
261631
Zero gravity is a non-existent force. It can only be reached when you have completley left a astral bodies(i.e. the earth or another planet). It is actually not zero gravity it is more as the there for lack of gravity.
313524
Mass is a property of some physical object that specifies the amount of matter and energy it contains. Be careful and don't confuse mass with weight -- an astronaut in orbit has no weight but his/her mass remains the same.
259238
You can't fall if you're in space, because there is no gravity, which is required in order to fall.  If you're in an atmosphere or using centrifugal force to simulate gravity, then you would still fall, but at a slower rate than you would on earth, assuming there is less gravity.
640026
The G shock is an impact resistant watch.\nIf you mean shock in terms of gravity- G shock is the force exerted on a body under sudden acceleration or deceleration-usually the later, in cases such as landing after a fall.  It is caused by change in rapid change in inertia which subjects the body to high pressure and shock wave-it is called "g" because acceleration and deceleration are measured in gravities (1g = ~10 m/s^2.
738834
d is the most correct answer, yes.  \n\nHowever keep in mind that despite g being the "gravitational constant", acceleration caused by gravity DOES change depending on the the distance from the earth.  When we're talking about the difference of a table, there is practically no difference, however keep in mind that it does change.
90920
In earth's atmosphere there is gravity that comes from the core of the earth. In Space, there is no gravity or "Zero Gravity", which means space is does not move except for the obitization of the planets around the sun. But, space is endless, so, we could be falling but never hit because of infinate space. but i do not think we fall.
939750
W=mg ... where g is the gravitational acceleration