Rank the size of these objects from smallest to largest: battleship, horse, neutron, galaxy cluster, planet, molecule

select one:
a. neutron, molecule, battleship, horse, planet, galaxy cluster
b. neutron, molecule, horse, battleship, planet, galaxy cluster
c. molecule, neutron, horse, battleship, planet, galaxy cluster
d. battleship, horse, neutron, galaxy cluster, planet, molecule
e. , galaxy cluster, neutron, molecule, horse, battleship, planet

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

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.