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Verified Answer :

Edufirst

Work SI unit = joule = Nm= [kg][m/s^2] [m] = kg m^2/s^2

Work cgs unit = erg =  [g][cm/s^2][cm] = gcm^2 / s^2

Then 1 kg m^2 / s^2 [1000 g/kg] [100cm/m]^2 = 10,000,000 g*cm^2/s^2

The relation is 1 joule = 10,000,000 erg or 1 erg = 10^-7 joule

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