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1972 has no significance in terms of changes in penny densities. The US Mint did not change the composition of its penny between 1909 to 1982, so any pennies from within this time period would have the same density. Pennies from this time period all contained the same proportions of metals (95% copper, 5% zinc.)
Coins from post-switch 1982 to present day are minted of 97.5% zinc and 2.5% copper.
Copper's density is ~8.9g/cm3 while zinc's density is ~7.1g/cm3. Considering the relative compositions of each version of the penny, the post-1982 penny would be the less dense penny, and the pre-1982 penny would be the more dense of the two.
What else can I help you with?
What happens if an object is more dense?
Density tells us how much matter is packed into a measured volume. That means:Density=Mass______VolumeSo that means the more dense an object is, the more particles in them are compressed together (heavier).:)
How much is a penny worth in metal?
Just a little more than $0.01... It actually costs the government more than a penny to make a penny, but it's only like a quarter of a cent difference. Any pennies minted before 1982 are solid bronze (95% copper), and are worth more in scrap than newer ones.
Is an ice cube more dense or less dense than liquid water?
Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.Less dense. For most substances, the solid form is more dense than the liquid form; water is a notable exception.
What would happen to the less dense plate vs. more dense plate if they collided?
The less dense plate would override the more dense plate during a collision, as it is not as heavy and will ride up over the denser plate. This could lead to the less dense plate being forced to subduct beneath the more dense plate due to the heavier weight of the latter.
A light was speeds up as it moves from a more dense to a less dense medium?
This is an example of refraction. When light moves from a more dense medium to a less dense one, it speeds up, causing it to bend away from the normal.
What is more dense a penny or a toothpick?
A penny is more dense than a wooden toothpick. This can be easily tested by placing both in a glass of water.
Why does a penny sink in sweet tea?
A penny is more dense than tea, so it sinks.
Did they make a 1972 aluminum penny?
We found on at Sears, in our change. It is steel because it sticks to a magnet. I am here because I wanted an answer to this question. But I have one so Yes they did. I wish I knew more.
What is more dense?
a solid is more dense
Is very salty water more or less dense than more dense?
More Dense.
Why is easier for things to float in seawater?
I would be thinking the salt is the reason. The salt makes the water more dense, so things that were more dense as compared to the water before become less dense as compared to seawater. So yeah, that's why things are more buoyant in seawater.
Is the earth less dense or more dense than water?
Earth is more dense.
Is cedar wood more dense then pine wood?
No pine is more dense then cedar.
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 has more density a rubber duck or a penny?
A penny has more density.
Can you use pennies for copper?
Actually, it is illegal. The metal in a penny is worth more than a penny. However, quarters made before 1974(I think), can be sold for their weigth in silver.
Is water more or less dense than gasoline?
More dense.
