Since rods are about 1000 times more sensitive than cones (at 500 nm), they should be able to detect smaller values of the electric field. assuming rods and cones are sensitive to the average energy density of an electromagnetic wave, which of the following statements is correct?

a. rods are able to detect electric fields 1000 times smaller than the fields detectable by cones.
b. rods are able to detect electric fields 1000/3=333 times smaller than the fields detectable by cones.
c. rods are able to detect electric fields 1000√=32 times smaller than the fields detectable by cones.
d. rods are able to detect electric fields 3 times smaller than the fields detectable by cones.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

Phagocytes contain digestive enzymes to facilitate the process of phagocytosis

All three of those things are forms of "acceleration".