This force occurs when ions create attractive and repulsive forces

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Which system of units is used by only a small number of countries in the world, including the u.s.