Find the length of the mercury column in a
simple barometer when the barometer is raised
from sea level to a height of 2.5 km given that
the average density of air is 1.2 kgm and the
density of mercury is 1.36 x 104 kgm
Atmospheric pressure at sea level is 76 cm of
mercury

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over

a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015

at right angles to each other