Intro to Pressure Video Lessons

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Problem: In a lecture demonstration, a professor pulls apart two hemispherical, steel shells (diameter D) with ease using their attached handles. She then places them together, pumps out the air to an absolute pressure of p, and hands them to a bodybuilder in the back row to pull apart. If atmospheric pressure is p0, how much force must the bodybuilder exert on each shell? Evaluate your answer for the case p=0.025 , D=10.0 .

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Problem Details

In a lecture demonstration, a professor pulls apart two hemispherical, steel shells (diameter D) with ease using their attached handles. She then places them together, pumps out the air to an absolute pressure of p, and hands them to a bodybuilder in the back row to pull apart. If atmospheric pressure is p0, how much force must the bodybuilder exert on each shell? Evaluate your answer for the case p=0.025 , D=10.0 .

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Pressure concept. You can view video lessons to learn Intro to Pressure. Or if you need more Intro to Pressure practice, you can also practice Intro to Pressure practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Julia took 2 minutes and 45 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Ng's class at FSU.