Aboard measures 68 inches how many feet is this?

__can be defined as which velocity changes

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons