Answer:
Explanation:
Given
balloon is ascending at the rate of 
Balloon is at a height of 
As the package is dropped from the balloon it must possess the same initial velocity as the balloon
using
where v=final velocity
u=initial velocity
a=acceleration
s=displacement



time taken is given by

substituting values

as we consider downward direction as positive


therefore time taken to reach the bottom is t=5.44 s
Ummm what does this even mean I need a picture to help u
Answer:
1 watt power is defined as the 1 Joule of energy consumed per second..
If 1 ken is 1.97 meter, then 1 square ken is 3.8809 square meters, and one cubic ken is 7.645373. As for the cylindrical tank, the volume of it would be 10.835 times the radius of the cylinder time 1.97^2 times pi. As you didn't specify the radius, I can't give the exact answer but that would be how to get it.