Which of the following statements is true about solar eclipses?
there is a solar eclipse every month.
all solar eclipses are total.
some solar eclipses are not total.
there can be 12 solar eclipses in a single year.

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.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

What is part of a line has one endpoint and continues in one direction?