What is the meaning of negative exponents in SI units?
Please could someone explain the reason for using negative superscripts in SI units, and more precisely when to use negative versus positive?
I do not understand, for example, why the volume of a fuel would be given in m3 but heat of combustion would be given in J m-3.
mechanical-engineering
asked Dec 28 '18 at 11:58
tsvallender
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Please could someone explain the reason for using negative superscripts in SI units, and more precisely when to use negative versus positive?
I do not understand, for example, why the volume of a fuel would be given in m3 but heat of combustion would be given in J m-3.
mechanical-engineering
asked Dec 28 '18 at 11:58
tsvallender
1112
New contributor
tsvallender is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Please could someone explain the reason for using negative superscripts in SI units, and more precisely when to use negative versus positive?
I do not understand, for example, why the volume of a fuel would be given in m3 but heat of combustion would be given in J m-3.
mechanical-engineering
asked Dec 28 '18 at 11:58
tsvallender
1112
New contributor
tsvallender is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Please could someone explain the reason for using negative superscripts in SI units, and more precisely when to use negative versus positive?
I do not understand, for example, why the volume of a fuel would be given in m3 but heat of combustion would be given in J m-3.
mechanical-engineering
mechanical-engineering
asked Dec 28 '18 at 11:58
tsvallender
1112
New contributor
tsvallender is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Dec 28 '18 at 11:58
tsvallender
1112
New contributor
tsvallender is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Dec 28 '18 at 11:58
tsvallender
1112
New contributor
tsvallender is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked Dec 28 '18 at 11:58
tsvallender
1112
asked Dec 28 '18 at 11:58
tsvallender
1112
1112
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tsvallender is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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Negative exponents means per. In countries that were heavily influenced by the British, units such as meters per second would most likely be written $m/s$. In Europe and elsewhere it could be written with negative exponents as $m.s^{-1}$.
In your example $J m^{-3}$ means joules per cubic meter.
answered Dec 28 '18 at 12:25
Fred
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1 Answer
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Negative exponents means per. In countries that were heavily influenced by the British, units such as meters per second would most likely be written $m/s$. In Europe and elsewhere it could be written with negative exponents as $m.s^{-1}$.
In your example $J m^{-3}$ means joules per cubic meter.
answered Dec 28 '18 at 12:25
Fred
7,32632238
add a comment |
Negative exponents means per. In countries that were heavily influenced by the British, units such as meters per second would most likely be written $m/s$. In Europe and elsewhere it could be written with negative exponents as $m.s^{-1}$.
In your example $J m^{-3}$ means joules per cubic meter.
answered Dec 28 '18 at 12:25
Fred
7,32632238
add a comment |
Negative exponents means per. In countries that were heavily influenced by the British, units such as meters per second would most likely be written $m/s$. In Europe and elsewhere it could be written with negative exponents as $m.s^{-1}$.
In your example $J m^{-3}$ means joules per cubic meter.
answered Dec 28 '18 at 12:25
Fred
7,32632238
Negative exponents means per. In countries that were heavily influenced by the British, units such as meters per second would most likely be written $m/s$. In Europe and elsewhere it could be written with negative exponents as $m.s^{-1}$.
In your example $J m^{-3}$ means joules per cubic meter.
answered Dec 28 '18 at 12:25
Fred
7,32632238
answered Dec 28 '18 at 12:25
Fred
7,32632238
answered Dec 28 '18 at 12:25
Fred
7,32632238
answered Dec 28 '18 at 12:25
Fred
7,32632238
7,32632238
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