in an airplane
No - you do not weigh less.
-- First of all, I always had the impression that mountains are on land, at least those that you can stand on. Be that as it may, however . . . -- Technically, you would weigh slightly less on a mountaintop than you do when you're on the flats, because on the mountain, you're farther from the Earth's effective center of mass. But you'd need some pretty good equipment to measure it. I worked it out once for a person on an airliner cruising at 35,000 feet ... roughly a mile higher than the highest mountaintop on Earth. Compared to his weight at sea level, he weighs about 0.33 percent less when he's up at 35,000 feet. For a 200-pound man, that's a difference of about 10.6 ounces.
No, just because a human is in water, doesn't mean they will weigh less. Humans would weight the same if they were in pudding, so humans do not weigh less in water.
Most people are surprised how much airplanes weigh, and engines too. Reciprocating engines typically weigh 1 pound per HP. Big jet engines weigh 0.2 pounds per HP or so and they typically weigh from one ton to several tons. Here a simulator for designing your own engine: http://www.grc.nasa.gov/WWW/K-12/airplane/ngnsim.htm
The pressure above the wing be Save comes less than the pressure below the wing.
No, weight changes but mass remains constant irrespective of the surroundings. :)
Airplane? What airplane? My paper airplane wings weigh less than 8 grams.
Deep Mine
Stand on a scale. Figure out how much you weigh. Then pick up the airplane and stand on the scale. Subtract how much you originally weighed, and that is the weight of the airplane.
a bunch.
A little bit less than a train made out of paper, but way more than a boat made out of paper. Of course, the size of the airplane wasn't stated in the question. If it was a really, really BIG paper airplane, it could weigh more than a teeny-tiny paper train. Although, if it was a tiny paper airplane it could weigh less than a HUGE paper boat. I'm pretty sure it would also depend on what kind of paper you use. A construction paper airplane would definitely weigh more than a tissue paper airplane. But one of those airplanes made out of copier paper would weigh about average. I wouldn't reccommend a toilet paper airplane. It would also depend on what kind of plane you were making out of paper. A 747 made out of tar paper is going to completely outweigh a Cessna made out of freezer paper. All in all, I would have to say a medium sized airplane made out of a mid-gauge paper would weigh in at around 3,982 kilograms.
A paper airplane? A 747? Cessna?
Mountaintop is a compound word.
lots of kilograms
An airplane's weight ranges from under 1000 lbs to over 500 tons.
5
They can weigh from 3,000 pounds all the way up to over 800,000 pounds.