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You cannot measure it, you suppose that the decay law works all the time. Then using the half-life definition (the time which you have to wait to get half of all nucleis decayed) just put all your data in the formula and calculate what you need. The decay all was checked for not too long periods of time. And people suppose that it works for long times also. It's no reason based on multiple experiments to think that something is wrong with this law.
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∙ 16y ago
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What are some examples where you would use light years as a unit of measure?
Light years are very long, 5 874 589 924 200 miles, so are used when considering very large distances. These are almost invariably astronomical, so we'd use them to measure how far away a star or a galaxy were.
Is a kite an accurate or inaccurate way to measure distance?
A kite is an accurate way to measure distance because of the long line that produces more accurate results.
How you can measure the pull between your body and the earth?
A bathroom scale performs that function very well.
What is long form of NASA?
National Aeronautics of Space Administration - The very long version of NASA!
How long has NASA been together?
NASA has been together for a very long time but there are no specific year on how long they been together
Why must products of nuclear fission be stored safely?
Because they are mostly very radioactive and many have long halflives
How do you use a meter stick?
To measure objects very long in length.
How long is a millilitter?
a millilitre is used to measure liquids.......a millimetre is used to measure distance. Neither is very large
Does radiation contamination fade over time?
Sure but it depends on the radioactive elements halflives
Could there be a more elements that are unknown in the periodic table?
sure, but all will be radioactive with short halflives.
How long are rats teeth?
about 5 mm i have realy measure my rats teeths owner of- 2
How long does it take for a nuclear bomb to clear up?
That is complicated:Depends on yield and height/depth of burst.Depends on several features of bomb design.Depends on halflives of radiological contaminants produced.Depends on decontamination effort attempted and degree of success.Depends on weather.
Where is the biggest wind generator?
The biggest wind generator is in Hawaii. It has two long blades that measure 50 metres long each, it is on top of a very long tower
How do to measure the Grand Canyon?
Use KMs to measure the 'GC' because it is so big Or... Metres - but that will take a very long time from 007 SGS
Why light-years are used to measure distances in the universe?
because it is the fastest way to measure in very long distances for example earth to other far away planets
Why light years are used to measure distances in the universe?
because it is the fastest way to measure in very long distances for example earth to other far away planets
What is the three convenient unit to measure range from very small length to very long length?
Nanometre, centimetre and parsec are three possible answers.
