Asked in Math and Arithmetic
How do you get volume of the coin?
Think of the coin as a cylinder. The volume is the area of the base X the height. The area of the base is Pi X radius squared. So if you know the radius or the diameter of the coin, which you can measure, and the height which you can also measure, than PiXr2Xh will give you the volume. ...
How do you measure the volume of a 20cent coin?
Coins are not cylinders. The rim of the coin is sometimes raised, as well there are depressions and peaks from the design of the coin. You should use a specific gravity test with water and a scale. ...
Asked in US Coins
How do you spot a real ten dollar gold coin from a fake one?
The easiest way is to measure its dimensions against what the coin should be. Gold is a hard metal to reproduce and as such fakes will either weigh differently or have a different diameter or thickness. An experienced coin dealer should also be able to tell you if your coin is genuine or not. ...
Asked in Coins and Paper Money
How can you tell if a coin is real silver?
There are a few ways to tell if it is silver. The first thing to do is measure and weigh the coin, a coin with the wrong diameter, thickness or a coin that weighs too much or too little than a genuine silver example is most likely fake. The second thing to do is match up the designs with that of a genuine coin, if the coin has noticeably differences like a date that shouldn't exist (like a coin looking like...
Asked in Coins and Paper Money, Philippines
How do you measure the diameter of a Philippine 5 peso coin?
Lay a ruler across the coin and make sure it measures from one edge through the center to the other edge. Read the diameter from the ruler. ...
Asked in Coins and Paper Money, US Coins
How do you know if a coin is a fake?
you find out what the coin is made of and lk up what the density of the material is. Then measure the volume of the coin by either measuring the radius of a face, square it, times it by pi and then time that by the depth. Or,if it is a funny shape fill a bucket up to the brim with water, place the coin in the bucket. Measure how much water is left to what was in their before...
Asked in Physics, Chemistry, Atoms and Atomic Structure
A metallic coin is given a negative electric charge How does its mass change?
its mass will increase by an amount too small to measure directly
How to calculate the distance between earth and moon with the coin?
We need a coin and a tape measure. Tape the coin onto a window pane that you can see the moon through. Step back until the apparent size of the coin and moon are the same. Measure the distance from the coin (cm) to your eye and the diameter of the coin (cm). The moon's diameter is 3474 km We know the ratio of the moon's distance from your eye to its diameter is the same as the ratio of the coins distance to...
Asked in Math and Arithmetic, Biology
What can you measure in milligrams?
Mass. Any mass can be measured in mg. But as there are 1000 mg in one gram (the mass of a small coin) unless you want a very large number of milligrams, it will have to be to measure a small or very low density object. ...
Asked in Science, Technology
How do you design and build a coin seperating machine?
get several sheets of metal or plastic (depending on how many coins your country has). Then measure each coin in diameter and cut out holes in one sheet of metal/plastic that are smaller than the designated coin but big enough for the next biggest coin to pass through. then repeat for each coin. when you're done with the holes but the sheets in a sturdy box and attach them to the walls of the box about 1 inch appart. Then pour...
Asked in British Coins
What is the value of a King George V 3 Shilling coin?
There has never been a 3 Shilling coin issued. For a brief period from 1811 to 1816, there were Bank of England King George III 3 Shilling bank tokens issued as a stop gap measure. ...