5. The magnification of a telescope is the effective focal length (efl) of the telelscope optics divided by the focal length of the eyepiece, and the results should be unitless (ie
magnification does not have things like mm or inches in it). Calculate the magnification
of the following systems. Show your work. (note eyepieces are interchangeable, so
astronomers generally don't care about the magnification - if it doesn't look good, we just
change the eyepiece.)
a. efl: 80 inches, eyepiece: 40 mm
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b. efl: 80 inches; eyepiece 25 mm
c. efl: 325 cm; eyepiece 35 mm

sorry, but you do not have posted the diagram.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.