10p an hour
Coins themselves aren't magnetic because they're not magnetized. However some coins are attracted to a magnet because they're made of metals like nickel or steel. Examples include:Most modern Canadian coinsBritish 1p, 2p, 5p and 10p coins made since 2012US 1¢ coins dated 1943EU 1, 2, and 5 cent coinsWhile many other coins around the world contain nickel, it's usually alloyed with significant amounts of copper (usually 75% or 80%), which prevents these coins from being attracted to a magnet.
It depends how much you pay for electricity. A 15 Watt bulb would consume around 134 kWh of electricity. In the UK, electricity is around 10p a kWh, so it would cost £13.40 to run the bulb.
For hurricane Katrina it was about 8.2 billion dollars to clean up for the storm!Comment:That's a lot of money!!!
If we only used joules as our measure then the numbers on the bills would be very large. A typical bill may have a 3 month usage of 150kWh. This would be 540000kJ. kWh keeps the numbers small and manageable without the need for a calculator to do the sums. If your bill said you had used 150kWh at 10p per kWh you can quickly see that this is £15 worth of electricity. If it said you had used 540000kJ at 1p per 360kJ then it gets harder to do the mental arithmeticAnswerThere is no special unit of measurement for electricalenergy. All energy, including work and heat, share exactly the same units. And there are many more units for energy than just two, depending on which system of measurements you choose to use: the SI System, the cgsA System, or the Imperial System for example. So energy could be measured in joules, watt hours, calories, British Thermal Units, and so on.
A British 10p coin, and all British coins for that matter, are not magnetic.
A British 10p coin contains 75% copper and 25% nickel.
The one that is not a 10p is a 20p. The other coin is a 10p. The question/riddle does not say that neither coin is a 10p, only that one of them is not.
20p and 10p
1
how much is a 10p1976 eire coin
A quarter and a nickel. The quarter is the coin that's not a nickel!
£1 coin + 50p coin + 2x20p coins + 10p coin = £2
Éire is the official name for Ireland. 10p is an old Irish coin that is no longer used, as since 2002, Ireland has used the Euro.
elizabeth 11 bailiwick of guernsey 1992 10p coin worth
Apparently they were a token for vending or gaming machines.
5 x 2 = 10