Consider two planetary orbits with the same energy
E. If the two planets have the same mass, but orbit A
has a smaller angular momentum than orbit B, which of the following
is true?
A.
Orbit B is open. Orbit A is closed.
B.
Orbit B has a smaller semimajor axis than orbit A.
C.
The period of orbit A is greater than that of orbit B.
D.
Orbit A is more elongated (more eccentric) than B.
True or false: Light always...