What is the shape of earth’s magnetic field most similar to?

a. a disk magnet
b. a bar magnet
c. a horseshoe magnet

which one?

Describe the path of a ray that approaches a mirror parallel to the principal axis.

Why don't you see your reflection in water with waves or repples

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?