At 30.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, a diver exhales an air bubble having a volume of 0.95 cm3. If the surface temperature of the sea is 20.0°C, what is the volume of the bubble just before it breaks the surface?

The volume is

Explanation:

From the question we are told that

     The depth below the see is  

     The density of the sea is  

      The temperature at this level is

      The volume of the air bubble at this depth is  

     The temperature at the surface is  

Generally the pressure at the given depth is mathematically evaluated as  

Where is the atmospheric pressure with a constant value

substituting values

According to the combined gas law  

=>      

=>    

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

b.transmitters send radio waves, and receivers capture radio waves.