The average tectonic plate moves at the rate of 0.006 m per year. How many meters would it move in 2 x 10° years?

Write the answer in scientific notation, expressed to the exact decimal place.

1 answer

To calculate how many meters a tectonic plate would move in \( 2 \times 10^6 \) years at a rate of \( 0.006 \) m per year, you can use the formula:

\[ \text{Distance} = \text{Rate} \times \text{Time} \]

Substituting in the given values:

\[ \text{Distance} = 0.006 , \text{m/year} \times (2 \times 10^6 , \text{years}) \]

Now, calculate the multiplication:

\[ = 0.006 \times 2 \times 10^6 \] \[ = 0.012 \times 10^6 \]

Next, convert \( 0.012 \) into scientific notation:

\[ 0.012 = 1.2 \times 10^{-2} \]

Now substituting it back into the equation:

\[ \text{Distance} = 1.2 \times 10^{-2} \times 10^6 \]

Combine the powers of ten:

\[ = 1.2 \times 10^{6 - 2} \] \[ = 1.2 \times 10^4 \]

So, the distance the tectonic plate would move in \( 2 \times 10^6 \) years is:

\[ \boxed{1.2 \times 10^4} \text{ meters} \]