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Dax Christensen
Physics
20 June, 21:24
Convert 15 joule into erg.
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Girl
20 June, 21:29
0
is
150000000 erg equal to 15 Joule
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Mary Fischer
20 June, 21:30
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Joule:
1 Joule of work is said to be done when a force of 1 Newton is applied to move/displace a body by 1 metre.
1 Joule = 1 Newton * 1 metre
1 Newton is the amount of force required to accelerate body of mass 1 kg by 1m/s²
So units of N is kgm/s²
So,
1 Joule
=1kgm/s² * m
=1kgm²/s²
Erg:
1 erg is the amount of work done by a force of 1 dyne exerted for a distance of one centimetre.
1 Erg = 1 Dyne * 1 cm
1 dyne is the force required to cause a mass of 1 gram to accelerate at a rate of 1cm/s².
1 Erg=1 gmcm/s² * cm
1 Erg=1 gmcm/s² * cm=1gmcm²/s²
this is what you need to convert 1gmcm²/s² to 1kgm²/s²
what you need to know for conversion
[1gm=0.001kg
1cm²
=1cm * 1cm
=0.01 m * 0.01 m
=0.0001m²
second remains constant
]
So,
1gmcm²/s²
=0.001kg*0.0001m²/s²
=0.001kg*0.0001m²/s² = 0.0000001kgm²/s²
Hence,
1 Erg=0.0000001 Joule1 Joule=10,000,000 Erg
⇒15 J=15*10000000 Erg = 150000000 Erg = 1.5*10⁶ Erg
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