<p>Two spherical bubbles sit side by side in a (effectively infinite) sea of flu

Question

<p>Two spherical bubbles sit side by side in a (effectively infinite) sea of fluid of density p= 1.2 kg/m³. They are 4.0 cm apart and each has a radius of 0.5 cm. Also, assume that they contain no mass. Assume no other gravitational fields are in effect.</p>
<p>A) derive the force of bubble 2 on bubble 1</p>
<p>&#160;</p>
<p>b) consider now that a spherical bubble of the same size but containing a fluid with density 2p replacing bubble 1. Find the magnitude and direction of the force on bubble 1 now.</p>
<p>--This question is worded correctly but I cannot figure how the evacuated bubbles can exert a gravitational force on one another, but I know it has something to do with them submerged in the liquid... please help!</p>

Explanation / Answer

Go this link and it might help u http://www2.leon.leon.k12.fl.us/coond/Physical%20Science%20Materials/ch12/sec_4/pste2124.pdf

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