The diagram below shows a container filled with water. The three holes in the side of the container are sealed with rubber stoppers. The water exerts a pressure of 3000 Pa on the bottom of the container. The cross-sectional area of the bottom of the container is 0.009 m². a) What is the pressure exerted by the water on the middle rubber stopper, if we assume it is exactly half way down the column of water. Give your answer as a number, units are not required.

b) Describe the energy transfer that takes place when the rubber stopper at the bottom of the container is removed.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation

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