Metals in group 1 on the periodic table most commonly form which type of ion

Anton created a chart listing different types of materials.which best complete the chart? (a)x: copper y: glass(b)x: rubber y: copper(c)x: paper y: silicon(d)x: silicon y: glass

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes