Atall tube is evacuated, and its stopcock closed. the open end of the tube is immersed into a container of water (density 103 kg/m3) that is open to the atmosphere (pressure 105 n/m2). when the stopcock is opened, how far up the tube will the water rise? a.1 m b.5 m c.10 m d.20 m

Explanation:

It is given that,

Density of water,

Atmospheric pressure,

The pressure exerted at a height h is given by :

g is acceleration due to gravity

h = 10.2 meters

or

h = 10 meters

So, the water will rise to a height of 10 meters. Hence, this is the required solution.

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-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

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