anonymous
  • anonymous
Could someone help with these two answers please? If the air inside a balloon exerts a force of 1.5 N on an area of 0.5 m², what is the pressure inside the balloon? A. 0.5 N/m² B. 1.5 N/m² C. 2.5 N/m² D. 3 N/m² As your airplane takes off from an airstrip on the ground and rises 30,000 feet into the sky, what happens to the air pressure on the outside of the airplane? A. The air pressure decreases. B. The air pressure increases. C. The air pressure stays the same. D. More information is needed.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
For first one...do you know what is the meaning of PRESSURE??
anonymous
  • anonymous
Pressure is a force applied on an object right?
anonymous
  • anonymous
pressure is the force per unit area....P=F/A so divide force by area to get answer to first question

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anonymous
  • anonymous
its not force applied on an object.. its how much force is coming on a unit area.. !!
anonymous
  • anonymous
So the answer would be D? 3N/m2
anonymous
  • anonymous
yup
anonymous
  • anonymous
ah thanks I get it now.
anonymous
  • anonymous
in the second one,when an airplane takes off, nothing happens to air pressure..what happens is that..pressure on the lower side of wings becomes greater than the upper one and it rises due to pressure difference......in the question,its not specified on which side of wing....so overall air pressure remains the same
anonymous
  • anonymous
Thank you so much!
anonymous
  • anonymous
my pleasure

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