a ship floats because of the mass and the parts of the ship help with staying on top of the water the buoyancy force is helpful for the ship to float which means weightless-airlessness and lightness.
newtons first law ; an object will stay at rest until a force is added onto it. Since the student knocked over the first domino that force the student added continues on until the row ends
The continents were separating farther and farther from each other so he came up with the theory that were drifting away from each other but didn’t have proof of how