saltwater, regular water, and vinegar can all speedup the rusting of a penny
The penny will drop faster than the feather due to the difference in mass and air resistance. The feather experiences more air resistance, which slows down its fall compared to the penny.
A brick would fall faster than a penny off a roof due to the difference in their mass. Objects of different weights fall at the same rate due to gravity, but the brick would have a greater force pulling it downwards compared to the penny.
It is made of steel with a zinc coating to prevent rust.
The penny on the lighter spot will receive the most energy because lighter colors reflect more light and therefore absorb less energy. Darker colors absorb more light and heat up faster.
An object falling through the air will have a terminal velocity of approximately 120-140mph. The less "wind resistance" it has the faster it goes. Although the penny has less wind resistance than say, an elephant, it still is not an ideal shape for moving through the air. Being flat, it can flutter, spin, 'float', etc, and that will slow it down.
the chemacls in vinager makes the penny rust
Salt water will rust a penny faster than vinegar because salt water is an electrolyte that enhances the electrical conductivity, accelerating the oxidation process on the surface of the penny.
Yes it does I did an experiment on it
no it reacts with the air around it
Nails are made of iron, but pennies are copper and zinc. Iron reacts with oxygen to form rust, but copper on the outside of a penny does not.
salt water
Sugar reaches the copper and they form a physical change
A penny will rust faster because it made entirely of zinc with a thin outer coating of copper, and zinc is made to rust unlike nickel which is used to make nickels, dimes, etc...
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.
nail
bleach or vinegar
rust no. Well maybe a 1943 steel penny.