Purely air resistance, the feather floats on the air. The mass is irrelevant. If a penny was dropped at the same time as a brick (ignoring wind resistance) both would hit the ground at the same time.
Look up Galileo's tower of Pisa experiment.
http://en.wikipedia.org/wiki/Galileo%27s_Leaning_Tower_of_Pisa_experiment
This also includes a video of a feather and a hammer being dropped on the moon (where there is no air). Both hit the ground together.
The penny will be gone. You will also be gone with it, because getting close enough to a black hole to drop a penny inside it will catch you in its gravity well.
Pepsi because it is more acidic than 7up.
The density of a penny is higher.
Yes water makes a penny rust faster in water because the particles are nore affective and the coke does not have near as many particles as water well good luck with the expirementing that project!!!!!!!!
A spoon
The penny because it has more pressure.
The orange juice must make the penny rust faster because when put a penny in a dish of lemon juice, it makes it shinier... which also works with ketchup.
The penny will land first, because the feather displaces the air. That is also why a boat floats, it displaces enough water underneath it that the displaced water pushes up keeping the boat afloat.
Of Course Not!! If you drop say a feather... it takes sometimes a while... but if you drop a heavy thing water buckets it take shorter!But that's because a feather drifts through the air, not because of its weight. If the only factor is gravity (no wind, no friction etc.), all objects fall at the same speed. So a penny and an elephant would hit the ground at the same time.
a penny
The penny will be gone. You will also be gone with it, because getting close enough to a black hole to drop a penny inside it will catch you in its gravity well.
Pepsi because it is more acidic than 7up.
If the penny is in a vaccum, the penny has no terminal velocity because verminal velocity is when the resistance against the falling penny is equal to the force of gravity. So if it is in a vaccum, it has no forces resisting the fall, and it has no terminal velocity.
There IS gravity in a vacuum first of all. The gravity accelerates both the penny and the feather at the same rate, about 9.81 meters per second. And since there is no air, there are no frictional forces acting on them, which normally make the feather move slower. So they go at the same speed! Hope this helps!
The density of a penny is higher.
If there was no air resistance and a feather and a penny were dropped from the same height they would both pick up speed by the same amount and they would hit the ground at the same speed and at the same time.
penny is faster because its smaller but if you're feet size are bigger than 11, go for the nickel.