When hebert describes the borders of new Hampshire as ¨...an idea¨-what does she mean?

What is an example of a line segment

Following lenins death, who took control of the soviet union

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.