Question

Mass of the Mars is 6.45 × 1029 and mass of the Sun is 1.89 × 1030. what is their total mass ?

Answer 1

Answer:

Step-by-step explanation:

The mass of Mars =6.42×10  

29

 kg

The mass of the Sun =1.99×10  

30

 kg

Total mass of Mars and the Sun combined  

=6.42×10  

29

+1.99×10  

30

 

=6.42×10  

29

+19.9×10  

−1

×10  

30

 

=6.42×10  

29

+19.9×10  

29

⋯⋯[∵a  

m

×a  

n

=a  

m+n

]

=(6.42+19.9)×10  

29

 kg

=26.32×10  

29

 kg