A large farm building used for storing farm products and sheltering livestock.
A large shed for the housing of vehicles, such as railroad cars.
A particularly large, typically bare building: lived in a barn of a country house.
Abbr. b Physics A unit of area equal to 10-24 square centimeters, used to measure cross sections in nuclear physics.
2006-06-07 00:21:45
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answer #1
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answered by ♥Hina♥ 4
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1
2016-05-05 01:08:34
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answer #2
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answered by ? 3
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A Barn is a unit used to measure the collision cross sectional area of a nucleus for reactions. In other words, if I fire a particle at the nucleaus of an atom, what is the effective cross sectional area presented by the nucleus for me to hit.
A Barn is 1 E -24 square centimetres, and is approximately the actual cross sectional area of a typical nucleus. However, very few collisions with nuclei lead to reactions, and a Barn is effectively a measure of the probability that I will hit the nucleus when I shoot at it (this is quantum mechanics after all). As a results most nuclear cross sections are measure in millibarns.
The term Barn was coined as what - among physicist - passes as a joke. This explains why physicist rarely get invited to cocktail parties.
2006-06-07 00:25:18
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answer #3
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answered by Epidavros 4
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A barn is an agricultural building used for storage and as a covered workplace. It may sometimes be used to house animals or to store farming vehicles and equipment. Barns are most commonly found on a farm.
2006-06-07 00:29:16
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answer #4
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answered by Anonymous
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A unit of area equal to , 10^-28 sq.metres abbreviated b or bn. The name derives from a humorous comparison with a saying sometimes applied to those with poor aim, "you couldn't hit the broadside of a barn." The barn is typically used to measure the cross section for nuclear reactions. For example, the elastic scattering cross section for thermal neutrons on hydrogen is 20.47 barn.
(Don't leave the door open when you go!)
2006-06-07 00:22:05
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answer #5
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answered by Owlwings 7
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I can't believe you asked that!!
A Barn is a structure where farm animals are kept. They use it more in the winter than summer, of course. Any other stupid questions??
2006-06-07 00:22:47
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answer #6
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answered by ladyecho 1
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lol peeps. his not asking the noun.
Physics question...
barn ( P ) Pronunciation Key (bärn)
Abbr. b Physics. A unit of area equal to 10-24 square centimeters, used to measure cross sections in nuclear physics.
2006-06-07 00:22:58
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answer #7
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answered by diarubie 5
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A big bldg. that almost always gets torn down during a tornado !
2006-06-07 00:21:03
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answer #8
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answered by papo9112001 3
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a building that will hold animals on a farm
2006-06-07 00:21:14
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answer #9
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answered by Anonymous
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A farm shed.
2006-06-07 00:19:16
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answer #10
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answered by Ruby Jane 7
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