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because old 2p coins are made out of bronze. Bronze is made out of tin and copper, these metals aren't magnetic. However, new 2p coins just look like they are made out of copper, however they only have a coating of copper on them, but the inside is steel, this is called copper plated steel. They are magnetic because steel is magnetic and makes up the majority of the coin.
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Why are new pennies magnetic but old one not?
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.
What catches more wind new windmills or old windmills?
it depends how the windmills work and the design.Usually new ones are works more better because old ones tend to be used -Kelvin Mo the guy with highlighted hair
Why might a 1990 coin have higher mass than a new one?
The difference in mass between a 1990 coin and a new one is negligible for all practical purposes, unless the currency has been redesigned. (For example, in the early 1990's the UK issued new 5p and 10p coins to replace much heavier old coins.)
Do wind turbines spin faster or slower in light winds?
They spin faster than old ones because some old ones are so old that they can't even move. That is my answer.(:
How does magnetic dating work?
Paleomagnetic dating utilizes records of "how things were" in a given area across time in the past as a basis for comparison to an unknown sample in order to date it. A link is provided to the Wikipedia article on paleomagnetism, which is the basis for paleomagnetic dating.
Which coins to save?
The coins to save are the old ones, from before 1965, they were made of silver.
Why are new pennies magnetic but old one not?
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.
What differences existed between the old and the new immigrants?
Old ones are old, and new ones are 13.
What is the difference between new and old mountain ranges?
ones old ones new
Can you get new cards in an old game in Yu-Gi-Oh?
you can get old ones in a new game but not new ones in a old game
What differences existed between the old immigrants and the new immigrant?
Old ones are old, and new ones are 13.
What episodes of The Simpsons are better the old ones or the new ones?
A lot of people say that the old ones are better, but I personally like the new ones.
Why do new 1p coins stick to a magnet but old ones don't?
No British coin is magnetic. Actually, older (1971-1991) 2p coins are not attracted to a magnet and newer ones are. The reason is that the rising price of copper forced the Royal Mint to change the composition from bronze to copper-plated steel. Many other countries that had low denomination copper or bronze coins also changed their compositions during that same time period or, dispensed with the coin coin altogether.
Do professionals prefer new trumpets or old ones and why?
new ones because they have more abilities and qualities and features than old ones:)
Why do cells make new cells?
Old cells make new cells so that when the old ones die there are new ones to replace them.
What is better new SpongeBob or old?
old sponge bob by FAR!!!!!!!!!!!! the new ones suck!!!!! in the old ones, Spongebob was SMART,cute, and yet still goofy! and the old ones made sense!!! in the new ones.. Spongebob and Patrick are SO DARN DUMB!!!!! its crazy!
What is the difference between ancient houses and present houses?
the difference isa roman house looks crappy modern ones are nota roman house has a whole in the ceiling a modern one doesn'tand the Romans had a swimming pool inside modern houses have a pool in the backyard
