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Why are pennies from pre-1982 and from 1982 made of different material?
Wiki User
∙ 6y ago
US pennies switched from copper to zinc due to the rising price of copper. Zinc is much less expensive.
Wiki User
∙ 6y ago
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What physical difference can you detect from pennies that are dated before 1982 verses pennies that are dated after 1982?
The weights are different. Pre-1982 pennies are 95% copper and weigh 3.11 grams. Newer ones are mostly zinc and weigh 2.5 grams.
How much does 1000000000 pennies weigh?
It depends if you are talking about pre-1982 pennies or post-1982 pennies.
Why do pennies before 1982 have a higher density than 1982?
Up into 1982, US pennies were 95% copper, but that year the composition was changed and now they're 97.5% zinc.
How much does 1 in US pennies weigh?
3.11 grams for pennies made from 1959 to 1982
A penny equals what fraction of an ounce?
There are a lot of different pennies in the world, but 11.34 US pennies minted since 1982 will weigh one ounce. It would only take 9.145 older pennies.
Which is more dense a pre 1982 penny or a post?
8.869 grams per cubic centimeter approximately. Some 1982 pennies are made of bronze alloy (pre1982) and some are copper plated zinc (post 1982). The change was made at the beginning of 1982 after some pennies had already been struck.
What is the difference in the 1982 and 1982 D penny?
This goes for all pennies, the blank penny was created in Philedelphia and the penny with the D was created in Denver. If you want to know the material or type you should see "how do you tell the difference between 1982 pennies?"
What physical difference can you detect from pennies that are dated before 1982 verses pennies that are dated after 1982?
The weights are different. Pre-1982 pennies are 95% copper and weigh 3.11 grams. Newer ones are mostly zinc and weigh 2.5 grams.
How many pennies does it take to weigh a pound?
Cents weigh different amounts depending on their dates. Before 1982, cents weighed 3.11 grams. Cents issued after 1982 weigh 2.5 grams. Cents issued DURING 1982 could weigh either amount (is this getting complicated enough?) A pound is equivalent to 453.6 gm, So with pennies made before 1982 it would take 146 pennies to get 454.6 grams... With pennies made after 1982 it would take 182 pennies.
How much does 1000000000 pennies weigh?
It depends if you are talking about pre-1982 pennies or post-1982 pennies.
How many pennies are in an ounce?
If the pennies were pre-1982 then 9 US pennies are very close to 1 ounce (9.145 pennies = 1 ounce). If the pennies are after 1982 then 11 US pennies are very close to one ounce (11.34 pennies = 1 ounce).
Is the ratio of copper to zinc in the pennies made after 1982 higher or lower than the ratio of copper to zinc in the pennies made before 1982?
The pre-1982 pennies are 95% copper and 5% zinc. Post-1982 cents are 97.5% zinc and 2.5% copper.
Why do pennies before 1982 have a higher density than 1982?
Up into 1982, US pennies were 95% copper, but that year the composition was changed and now they're 97.5% zinc.
How many pounds of Pennys equals one dollar?
Presuming that you are asking about US Lincoln pennies, the answer is that it depends. If the pennies are pre-1982, they are 95% copper and 5% zinc and weigh 147 to the pound. If the pennies are post-1982, they are 2.5% copper and 97.5% zinc and weigh 181 to the pound. In 1982, both types were made. In 1943, pennies were made from steel coated with zinc (so-called "silver pennies" or "steel pennies") and in 1944 (and I think 1945 as well) from old brass shell casings, so their counts would be a bit different.
Were 1950's pennies made of cooper?
Pennies from 1982 and before were all copper
How many 1982 pennies does it take to make a pound?
100 pennies = 1 pound.
How much is 130lbs pennys us weight in dollars?
It depends on the year. Before 1982, pennies contained 95% copper and 5% zinc. Those minted after 1982 are 97.5% zinc and 2.5% copper. Today's pennies weigh less. So if the majority of the pennies are after 1982, you would most likely have about 23,586 pennies, which is equal to $235.86 USD. If the majority of the pennies are before 1982, you would most likely have 18,960 pennies, which is equal to $189.60 USD. But then again you can smelt the pennies and sell the copper. I hope this helped you. :)
