Question

The mass of a small virus is 10^-20 kg. The mass of an average human cell is 10^-12 kg. Which of the two has lesser mass? how many less is it?

Answer 1

Answer: -10kg

Explanation:

10-20 =-10

10-22 =-12

-10 is lesser

Answer 2

For this case we have:

`10 ^ {- 20}`, we must run the decimal point 20 spaces to the left.

`0.00000000000000000010 \ kg`

`10 ^ {- 12}`, we must run the decimal point 12 spaces to the left.

`0.000000000010 \ kg`

Thus, it is observed that the mass of a small virus is smaller!

We subtract and obtain:

`10 ^ {-11}`

ANswer:

The mass of a small virus is less!