Help? I feel like it is either C or D but I could be absolutely wrong and I kind of need to pass this.

D. Frictionand air resistance

Explanation:

This problem can be understood using the principle of energy conservation which tells us that energy is transformed from one form to another. That is, it is transformed from kinetic energy to potential energy or vice versa.

If there are no friction forces or some kind of forces that are acting against the movement, it can be said that energy conservation is done 100%

But when this is not fulfilled, that is, when there is a force that prevents movement or acts in the opposite direction to displacement or work done, this physical expression is given

This equation tells us that the kinetic energy at the beginning will be equal to the kinetic energy at the end, as long as there is no work ( W1-2) in the opposite direction to the movement.

For this example this type of negative work is given by forces such as wind and women's weight.

-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