Answer:
1.267 nanometers.
Explanation:
From the question,
Speed = distance/time.
S = d/t.................. Equation 1
Make d the subject of the equation,
d = S×t ............................... Equation 2
Given: S = 4.0 cm/year, t = 1 seconds = 3.17×10⁻⁸ years
Substitute into equation 2
d = 4×3.17×10⁻⁸ =
12.68×10⁻⁸ cm = 12.67×10⁻⁸×10⁷
d = 1.267 nanometers.
Hence the Tectonic plates move 1.267 nanometers.
