Bottle Cork
What is the frictional force on the cap of the bottle?
The pressure in a bottle of champagne is 5.4 atm above the air pressure outside. The neck of the bottle has an inner radius of 1.0 cm. What is the frictional force on the cap of the bottle in Newtons?
Pressure = Force / Area. The differential pressure is 5.4 atm. The difference in power is 5.4 atm * This is equal but opposite to the force of friction. Friction = 5.4 * 101360 * [0,01 π ^ 2] = 172 Newton ============== ============== ► ◄
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