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What else can I help you with?
Why do pennies before 1982 have a higher density than 1982?
Pennies before 1982 were made of 95% copper, which has a higher density compared to the 97.5% zinc composition used in pennies starting in 1982. This change was made due to the increasing cost of copper.
In what ways is the penny analogy for isotopes misleading?
The penny analogy for isotopes can be misleading because unlike pennies, isotopes of an element have different numbers of neutrons which can result in different properties. Pennies are all identical regardless of year, whereas isotopes have variations in their physical behavior due to differing numbers of neutrons. Additionally, the chemical behavior of isotopes might differ slightly due to their mass differences, unlike identical pennies.
Are us pennies made of copper?
U.S. one cent coins were 95% copper until 1982. 1982 was the transition year from copper to zinc, so there are copper coins dated 1982 and zinc coins dated 1982. From 1983 to 2012 the coins are 99.2% zinc & .008% copper with a copper plating.
How many mili seconds in a year?
There are approximately 31,536,000 milliseconds in a year. This is calculated by multiplying the number of milliseconds in a second (1000) by the number of seconds in a year (31,536,000 seconds).
How many pennies are made per second?
The number of cents made each year varies widely depending on demand, so even an average figure for coins per second won't be very representative. For example in 1994 almost 13 billion cents were made which works out to about 412 coins per second over an entire year. In 2009 only about 1/6 as many cents (2.3 billion) were struck so that's 70 coins per second. Of course production doesn't necessarily go on 24/7 so the actual production speed varies a lot, too. An individual coin press can make 600 to 800 coins per minute so that's 10 to 13 coins per second per machine.
What year was the smallest number of pennies found?
1991
What year pennies are rare?
Mainly 1909 S VDB Penny, and 1955 Double Die, also any Pennies under 1850 can be found of much value.
How many copper pennys were made in 1943?
There are no exact records of the number of copper pennies made in 1943. It was about 40. Most pennies that year were made of steel.
What day and year did they stop making pennies?
they still make pennies
How much is 6 billion pennies in us dollars?
6,000,000,000 pennies equals $60,000,000 (sixty million dollars). 6 billion is about half of the total number of pennies made each year - 13,000,000,000 - so you are unlikely to see that many at once.
How many pennies were minted each year?
Cents have been issued for over 200 years at 3 different mints, and I'd rather not type for the next couple of hours, LOL! You can visit a site such as www.coinfacts.com that lists all the figures by year and mint.
When did they stop wheat pennies?
The last year that wheat pennies were minted was 1958.
When they stop making wheat pennies?
The last year for wheat pennies was 1958.
What year did they stop putting the wheat sign on the back of pennies?
These pennies are called "Wheat Pennies". They were last made in 1958.
Is there a 1959 wheat penny?
No. The last year for wheat pennies was 1958. 1959 was the first year for Lincoln Memorial pennies.
What year were pennies sopped being made?
1815 is the only year U.S. one cent coins (pennies) were not made.
If you save two pennies on January 1 four pennies on January 2 six pennies on January 3 and continue this pattern for one year not a leap year what will be the value of your entire savings?
$1335.9
