Question

Prove that 1 joule = 10⁷ erg.​

Answer 1

Answer:

1 joule = 1 kg m^2/s^2

1 erg = 1 g cm^2/s^2

n1u1 = n2u2

so, 1 kg m^2/s^2 = n2 g cm^2/s^2

that is, 1×1000×100×100 g cm^2/s^2 = n2 g cm^2/s^2

that is, n2 = 10^7

hence, 1 joule = 10^7 erg