Question

A balloon is a sphere with a radius of 5.0 m. the force of air against the walls of the balloon is 45 n. what is the air pressure inside the balloon?

Answer 1

The air pressure inside the balloon is: 0.1432 Pa

The formulas and procedures that we will use to solve this problem are:

• a = 4 * π * r²
• P = F/a

Where:

• a = area of the sphere
• r = radius
• π = mathematical constant
• P = Pressure
• F = Force
• a = surface area

Information about the problem:

• r = 5.0 m
• F = 45 N
• 1 Pa = N/m²
• 1 N = kg * m/s²
• a=?
• P=?

Using the formula of the sphere area we get:

a = 4 * π * r²

a = 4 * 3.1416 * (5.0 m)²

a = 314.16 m²

Applying the pressure formula we get:

P = F/a

P = 45 N/314.16 m²

P = 0.1432 Pa

What is pressure?

It is a physical quantity that expresses the force applied on the area of a surface.

Learn more about pressure at: brainly.com/question/26269477

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