Author Question: The Earth's magnetosphere is a A) sphere of magnetism found just outside the molten outer core of ... (Read 27 times)

dmcintosh · **on:** Jul 27, 2018

The Earth's magnetosphere is a

A) sphere of magnetism found just outside the molten outer core of the Earth
B) spherical magnetic field generated by magnetic rocks on the Earth's surface
C) cavity carved out in the solar wind by the Earth's magnetic field
D) sphere of magnetism caused by the motion of charged particles in the Earth's outer atmosphere

Question 2

A planet of constant mass orbits the sun in an elliptical orbit. Neglecting any friction effects, what happens to the planet's rotational kinetic energy about the sun's center?

A) It decreases continually.
B) It increases continually.
C) It remains constant.
D) It increases when the planet approaches the sun, and decreases when it moves farther away.
E) It decreases when the planet approaches the sun, and increases when it moves farther away.