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24-12-2019
Physics

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The pressure inside a bottle of champagne is 5.99 atm higher than the air pressure outside. The neck of the bottle has an inner radius of 1.46 cm. What is the frictional force on the cork due to the neck of the bottle

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NoonElsadig NoonElsadig

24-12-2019

Answer:

46.81N

Explanation:

pressure= force÷area
force= pressure ×area
pressure= 5.99+1.0=6.99 (since atmospheric pressure is 1 atm)
area= pi× radius squared (sorry I don't have symbols on my keyboard)
A= pi × (1.46)^2=6.697 cm^2(rounded to 3 d.p)
so F=6.99×6.697 =46.81N

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