Which phrase describes a feature of the Global Positioning System (GPS)?

What did executive order 9981 accomplish

Mars has a surface gravity that is only 0.38 (a little over one-third) that of earth's. thus, the weight of an object will also be 0.38 times that of earth. what is the g.p.e. of a climber who weighs 675 newtons on earth at the top of 26,000-meter olympus mons?

Compare the objectives and strategies of organized labor and populists for challenging the prevailing economic beliefs and practices of the ''gilded age.''