IV. Să se afle masa unei molecule şi densitatea propanului (C3Hg) aflat în condiții normale de temperatură și presiune. (NA = 6,023.102molecule/Kmol, V 40 = 22,42 mº/Kmol)
(2,5p

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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snell's law

refractve index = sin incidence / sin refraction