2006-12-22 23:28:58 · 14 answers · asked by falcidia 4 in Science & Mathematics ➔ Physics
Of course not.
To fly a duck must impart a downward force against the earth to acheive lift. This is equal to the weight of the duck.
No change.
2006-12-22 23:32:34 · answer #1 · answered by efes_haze 5 · 4⤊ 1⤋
No. Assume that the 1000 ducks weigh 2 pounds each or one ton. In the first place the ducks are still part of the mass of the earth (just like the air) and the gravitational attraction of the moon has not changed merely because the ducks are airborne. Second, the ducks can not stay aloft stationary (even if soaring) and must interact with the air. This means that the air supports the ducks and the surface of the earth supports the air. It could be argued that the weight of the "solid earth" is reduced by a ton with the ducks aloft because they are not part of it (like satellites circling the globe). The bottom line is that you must specify the boundaries of the system under evaluation. Good question.
2006-12-23 07:40:36 · answer #2 · answered by Kes 7 · 1⤊ 1⤋
That depends on how you define "The Earth".
If "The Earth" is defined as everything 6500km (the solid stuff+the atmosphere) from the center of the third rock from the sun then the answer is no.
However if "The Earth" is defined as:
Define a little piece of iron in the center of the earth as "Earth"
Anything solid touching "Earth" is defined as "Earth" too.
e.g. The mountains the trees the buildings but not the planes and the birds.
Then yes, the Earth is now lighter.
2006-12-23 11:53:36 · answer #3 · answered by cchh1990 1 · 1⤊ 0⤋
The Earth and the ducks each still weigh the same being separate entities.
2006-12-23 07:39:55 · answer #4 · answered by Andrew V 1 · 0⤊ 1⤋
The ducks are in the air, and the air is part of the planet. It makes no difference.
2006-12-23 08:18:06 · answer #5 · answered by Anonymous · 1⤊ 0⤋
No,! Because 1000 ducks fly north in the southern hemisphere at the same time.
2006-12-23 07:38:31 · answer #6 · answered by pa69oldfart 4 · 0⤊ 2⤋
You bet! In fact, when the ducks take off the planet will be pushed in the opposite direction.
2006-12-23 07:47:05 · answer #7 · answered by Anonymous · 1⤊ 1⤋
No, they would need to fly north for that to happen, flying south creates a wind vortex over the Atlantic.
2006-12-25 01:57:52 · answer #8 · answered by lulu 6 · 0⤊ 0⤋
by a few feathers. but it must make a difference, if the worlds so finely tuned.it will effect something, just like if they build lots of buildings in a certain area. do we lose axis. movement of people must affect the world ,in the weather patern or humans and animals habbits.
2006-12-23 18:51:10 · answer #9 · answered by clare p 3 · 0⤊ 1⤋
the earth has the same mass
weight takes into account gravity which is caused by the earth
so erm well er i don't know- good question lol
2006-12-23 07:36:50 · answer #10 · answered by Icarus 6 · 0⤊ 1⤋