Two parallel plates 1.0 cm apart are equally and oppositely charged. an electron is released from rest at the surface of the negative plate and simultaneously a proton is released from rest at the surface of the positive plate. how far from the negative plate is the point at which the electron and proton pass each other?

 the proton and electron will be met almost at the positive plate. Aproximatelly 1 cm from the negative plate.

Explanation: Both particles when are released in the electric field have both field a force given by: F= q*E, Then the electron moves to the left while the proton to the right. They will met very close to positive plate. This fact is due the different acceleration that each particle feel. This means the proton feel a weak acceleration due to its bigger mas, The proton mass in 1836 times higher than the electron.

The equationa are teh following

For the proton Fp=mp*ap

Fp=e*E

For the electron Fe=me*ae

The kinematic equation are:

From the lest 8 negative plate

x=ae*t^2/2

D-x=ap*t^2/2

combining these we can obtain x.

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-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

hope this