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Found in: Page 260

### Physics Principles with Applications

Book edition 7th
Author(s) Douglas C. Giancoli
Pages 978 pages
ISBN 978-0321625922

# Will an empty balloon have precisely the same apparent weight on a scale as a balloon filled with air? Explain.

No, the mass of the air-filled balloon is more than the empty balloon. The density of the empty balloon is more than the air-filled balloon.

See the step by step solution

## Step 1: Understanding the application of Archimedes' principle in the balloon

From the Archimedes principle, the outside air has been displaced as the weight of the inside air is higher than the buoyant force on the balloon. Due to this, the weight of the balloon is more than the outside air weight.

## Step 2: Explaining an empty balloon precisely of the same or not the apparent weight on a scale as a balloon filled with air

The weight of the inflated balloon is always higher than the deflated balloon. Also, the density of the deflated balloon is higher than the inflated balloon.

The pressure inside the inflated balloon is higher than the outside pressure. The density of the air inside the balloon is also more than the outer air.

So, the apparent weight of the inflated balloon is more than the empty balloon.

Thus, the empty balloon will not have the same apparent weight on a scale as a balloon filled with air.

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