Answer:
Hey
The reason these "space movies" are wrong is because objects in "space" (not in a "space" craft) can't catch on fire because there is no air in "space".
Hmmm...maybe it would be because since you're staying still then things appear to go by quickly.
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>



Answer:
Magnitude of fourth displacement is approximately 95 metres,
Direction of fourth displacement is straight west.