I believe the percentage is between 15-20%. Stress is a well known factor that affects the performance of people.
Explanation:
Since the balloon is not accelerating means that the net force on the balloon is zero. This implies that the weight of balloon must be equal to the buoyant force on balloon.
Hence, the buoyant force equals the weight of air displaced by the balloon, also 20,000 N.
Weight of the air displaced = density of air × volume
The density of air at 1 atm pressure and 20º C is 1.2 kg/m³
the volume V = 20,000/(1.2×9.8) = 1700 m³
Answer:
what time you thinking. about coming down to take a break and ok I will get to?. that was a right answer?
Density applies to many if not all aspects of life. With density you can explain why ice floats. You can explain why oxygen is on the earth, and not floating around in space( or being replaced by another gas). You can also explain why heat rises while cold air sinks.
Maybe it is, maybe it isn't. We can't tell, until we see what "this" is.
Show us a drawing, an equation, an expression, a statement ... something !