The rings of Neptune

A) were confirmed by the Voyager 2 in 1989.
B) number five, with three narrow, two more diffuse.
C) all lie within Neptune's Roche Limit.
D) often appear as clumpy ring arcs, rather than complete and symmetrical.
E) All of these are correct.


E

Physics & Space Science

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What will be an ideal response?

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Photon Energy: A helium-neon laser emits light at 632.8 nm. If the laser emits 1.82 × 10-17 photons/second, what is its power output in mW? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)

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Physics & Space Science