An ice cream truck is moving along at 20m/s (it’s initial velocity.) It then speed up (accelerates) for 5 seconds at 8m/s^2. What distance would the truck travel in this time interval

It really doesn't matter for any of the questions that you've listed.

It maybe because uranus is made of gas but uranus has a solid core in the middle

Shania is trying to determine the oldest geologic unit on this map and the reason to why is she unable to do so is that  the units are all the same age.. when there is the same age, there will be no oldest geologic unit and that i cannot be credible.