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Coins are made of different metals.Metals have their own characteristic modulus of elasticity.Due to this modulus(here Young's modulus)different metals have different frequency of vibration.some rings clearly and some others are low in sound.
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What metal are coins made from?
Different coins are made of different metals and some coins are laminated layers of different metals. Some of the metals that have been used are:coppersilvergoldnickelbrassbronzezinc (used as core of modern US pennies)etc.
What are the methods used for dating old coins?
If you mean ancient coins, the design is one factor. They are usually only assigned a range of dates and cannot be attributed to a particular year. The Romans especially liked having the portrait of the current Emporer or Caesar and there are historical records of each ruler's time in power. Some may be dated by descriptions of the actual coins in old documents and others by other items found with them by archeologists.
What are some evidence of plate tectonics?
The ring of fire.
Why are volcanoes in the ring of fire more deadly than others?
In the ring of fire, there are more active plates and they move a lot and makes the volcanoes erupt violently and often. - Tyler <3 Hope this helps.
Why do some mountains have snow and others not?
because some are higher than others
Which metal is used in Indian coins?
The outside ring is CuAl6Ni2 The inner disc is CuNi25
What is the value of a 1937 threepence silver ring good condition?
Modified coins have no collector value. The ring may have some value.
What is a 1931 threepence worth set in a ring?
Modified coins have no collector value. The ring may have some value as a piece of jewellery.
What are facts about greek coins?
the picture on the coins were different for each city state. just like today some coins a worth more than others
What do you do with the coins once you start earning?
Save some and use others to pay bills
What is the value of your 1912 full sovereign ring?
Modified coins have no collector value. Any value would be associated with the ring.
What is value of a 1903 Sovereign mounted in a ring?
Modified coins have no value as a collectible. Any value would be associated with the ring.
How many combinations make 1.00 with 15 coins or less?
It depends on what the coinage is. Some countries have coins worth 0.25, others (UK, for example) do not.
What others coins can you use?
Any coins that are legal tender.
Why are some coins more shiny than others?
Because they are cleaner or because of the type of metal they are made of.
What is the value of a 1937 Halfpenny ring?
Modified coins have no collector value. Any value would be associated with the ring.
Do pennies have any value?
Some more than others. For more valuable coins, they have to be pre-WWII. Postwar coins are only worth 3-10 cents each.
