No. "Magnetic" means that a piece of metal is itself magnetized, so coins are never magnetic. However metals like steel and nickel are attracted to a magnet. But in the case of US coins, most of them contain a high enough concentration of other metals (copper today, silver in the past) that they're not attracted to a magnet.
The only exception to this were the famous 1943 1-cent coins that were made from steel because copper was needed for the war effort.
You can't magnetize US Coins since they are made of non-magnetic materials like copper, nickel, and zinc. If you're looking to experiment with magnetizing objects, you may want to use items made of ferromagnetic materials like iron, nickel, or cobalt.
There is no scientific evidence to support the claim that magnets can magnetize water. Magnets can interact with water molecules, but they do not magnetize or make water magnetic.
You can magnetize a dress making pin by stroking it in one direction with a permanent magnet. I have done it using a good quality fridge magnet. Dress making pins may become magnetized when they are dropped on a hard surface, for example a tiled floor.
A pulsar
Two north poles will repel each other due to their like magnetic charges. To "magnetize" them together, you would need to flip one of them around so that it becomes a south pole. This will create attraction between the two poles and they will come together due to the magnetic force.
It depends on the year the coin was minted. Quarters made since 1965 are copper clad with cupronickel, and weigh 5.67 gm each. Interestingly that's 0.2 US ounces so even though coins are measured in metric units, exactly 5 quarters weigh one US ounce. From the 1870s to 1964, US quarters were made of 90% silver/10% copper and weighed 6.25 gm. A US ounce is 28.35 gm so doing the division works out to about 4.54 coins per ounce.
You can magnetize a paper clip by passing it repeatedly over a large magnet.
The US Mint produces circulating coins, commemorative coins, and bullion coins for the United States.
magnetize
No, Cayman coins do not work in the US.
The best thing to do is click on images on you browser and type in US Coins, this will bring up pictures of US coins
There is no scientific evidence to support the claim that magnets can magnetize water. Magnets can interact with water molecules, but they do not magnetize or make water magnetic.
coins
No, retailers are allowed to accept whatever in payment for goods, be that US coins, Chinese Coins, gold and silver coins, or toothbrushes. A retailer can refuse to honor some or all US coins. However, since US coins are legal tender, a company cannot sue you for not paying a bill previously agreed upon in US dollars for paying in US coins. But at the point of purchase, a retailer can demand payment in whatever and can refuse US coins.
All US coins use metal
The first coins made by the US Mint was in 1793.
magnetize
No its not a metal.