Has the rate of movement of the Pacific plate been constant over the lifetime of the Hawaiian-Emperor island chain? Which section has been moving faster?
The oldest rocks that make up Lo'ihi is an estimated 400,000 years old. Using the rate of plate movement that you calculated in question #2, how far has it traveled in km since its first lava cooled? Hint: you need to rearrange the rate formula to determine distance and then convert cm to km. Rate=distance/time so distance= rate x time.