Answer : Thomas Edison created many of the individual elements needed for the creation of the motion picture industry. Examples of his inventions are the light bulb, the phonogram, the kinetograph (a motion picture camera) and the kinetoscope (a peephole motion picture viewer).
Explanation: when you answer your question make in direct .. <3
Appellate court hope this helps :)
Explanation:
part A
we know how much erg of radiant energy the sun produces for one second so to find out how much it produces for 2.45 ⋅ 10^5 seconds we only should multiply these seconds to the erg of radiant energy it produces for one second
amd we get 9.555*10^38erg of radiant energy
Part B:
0.0074mm knowing that blood cell is very small to be seen normally without microscope.
and 7400mm is a measure that is quite big for a blood cell. So it remains that 7.4*10^-3 is the right one.