The most probable cause is that the coin was struck at the mint on a blank (planchet) that was not of the proper thickness. This isn't a most uncommon event even though the mint does a good job with quality control. That means some coins slip through that are "non-standard" and have some collectiblity and some worth beyond face value.
What country are you talking about? New U.S. cents are not magnetic; they're made of copper-plated zinc. The only magnetic U.S. cents were the steel ones minted during 1943 so copper could be used in ammunition. New Canadian cents and British pennies are magnetic because they're made of copper-plated steel. The price of copper went up so much that it cost more than a penny to mint the coins, so the governments were losing money on each one. They switched to steel as a cheaper alternative.
A normal incidence is one that could happen on any given day.
Another name for the normal force could be the force perpindicular to the surface an object is resting on.
A thick paperback book weighs about 1 pound.A large hamburger (Whopper, Big Mac) can weigh about a pound (about 1/4 pound of meat).A set of 5 or 6 DVDs, in their cases, weighs about a pound.
Humpback whale can be 45 tonnes - the females more so than the males
US Pennies were made of 95% copper (with the exception of the 1943 steel cent) from 1864-1982. Midway through 1982, the cent switched to copper plated zinc. So any penny dated 1983-present is just copper plated zinc. However a coin dated 1982 could either be 95% copper or copper plated zinc. A copper coin should weigh about 3.11 grams while the zinc pennies are lighter at about 2.5 grams.
The US does not made tin or silver pennies. However it could be plated with tin or silver. Either way they are only worth one cent.
It would depend on how many pennies they had!
It could indicate KaraT Plated, meaning that the necklace is gold plated.
You could have: 3 quarters; 3 pennies 14 nickels; 3 pennies 7 dimes; 3 pennies
Indian Head cents were not made until 1859 and did not exist in the 1820's. All US cents at that time were Large cents, so they could not have been used together.
If you had 40000 US pennies, it would mean you have the equivalent $400 US dollars. This can be solved by taking 40000 and multiplying it by .01 A more interesting question is how much would all those pennies weigh? To fill a roll of pennies takes 50 coins, and a roll of pennies equals 50 cents. Each roll of pennies weighs roughly .31 pounds. Therefore 40000 pennies would weigh roughly 248 pounds, that is a lot of weight to carry around in coinage when it could all be replaced by four $100 bills and fit easily in your pocket.
Pennies minted in the United States cents from mid-1982 to the present are copper-plated with zinc inside. By weight, the zinc core comprises 97.5% of the coins' metal. There were some 2009 bicentennial cents minted specifically for collectors that were made from 95 percent copper and 5 percent tin and zinc,
1,000,000
There could be several reasons. 1. Some may be in contact with water. 2. Some may be scratched. 3. Coinage metals are sometimes changed. Pre-1992 British decimal pennies were bronze but now they are copper plated steel. 4. Some may be in contact with different metals, forming a couple which can sometimes accelerate corrosion.
The original composition is steel not copper, many have been copper plated.
Copper and zinc-plated pennies do not rust, because they're not made of iron. The only American pennies that could rust were the steel cents struck in 1943. You might believe that a penny is rusting but instead it is corroding! Yes, it does not rust it just corrodes.