Question

PLZZZ HELP WILL GIVE BRAINLEST only if correct

Answer 1

Part a

power = 3.9 \times  {10}^{33} erg \:  {sec}^{ - 1}  

energy \: in \: 3.25 \times  {10}^{3} sec = 3.9 \times  {10}^{33}  \times 3.25 \times  {10}^{3}  = 12.675 \times  {10}^{36}  

part b  

1.435 . 10^3 mm = 1.4m

1.435 . 10^-3 mm = 0.001435m  

so the first one ie 1.4m is more reasonable as tge second one is too small quantity.

Hope it helps.