PLEASE HELP ME! There are an estimated 200-400 billion stars in our galaxy, and possibly 100 billion galaxies in our universe. W
1 answer:
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Answer:
a)
b)
Explanation:
Given:
height of water in one arm of the u-tube,
a)
Gauge pressure at the water-mercury interface,:
we've the density of the water
b)
Now the same pressure is balanced by the mercury column in the other arm of the tube:
<u>Now the difference in the column is :</u>