Question

Mass of Mars is $6.39\times {10}^{21}kg$ and mass of Mercury is $3.285\times {10}^{23}kg$. What is the total mass in $kg$?

Answer 1

Mass of Mars = $6.39\times {10}^{21}kg$

Mass of Mercury = $3.285\times {10}^{23}kg$

Total mass = $6.39\times {10}^{21}kg+3.285\times {10}^{23}kg$

$=6.39\times {10}^{21}+328.5\times {10}^{21}$

$=334.89\times {10}^{21}$

$=3.3489\times {10}^{23}kg$