Archive for January, 2009

How could renewable energy sources be used to meet a household's needs?

January 19th, 2009

Consider the following issues: What renewable sources of energy are available? Which sources could be used to supply a household's needs? How could each source be used? Where would the home have to be located to use each source? What equipment would be needed? Where would this equipment be located? What backup systems should be [...]

How to switch story over from biofuels to alternative energy?

January 19th, 2009

In my story i have to talk about biofuels and alternative energy.. i already wrote about all the biofuels and about oil platforms and what are the largest oil platforms. Now I need to switch over to alternative energy… how can I do that???? how should i start? Conclude your current section with a summary [...]

Are Power bars really good for your body? Or, is it simply junk food?

January 12th, 2009

I have been eating power bars for breakfast ocassionally before my exercise science class because I want energy. However, I have noticed today as I browsed down the store shelf to purchase a power bar all the different flavors they have. They have cappicino, chocalate, berries and cream, etc. So, now I'm wondering if power [...]

wing fuel tank booster pumps?

January 12th, 2009

hi, my questions are; 1- from where the wing booster pumps take their energy (not APU booster pumps, because the APU booster pumps get the energy from battery power) 2- why we need booster pumps, why dont the low pressure fuel pump be used instead of booster pump ? 3- if the APU not available, [...]

How expensive is solar energy to produce?

January 12th, 2009

How expensive is solar energy to produce? What does a solar energy power plant look like and how do they work? What are the hidden costs to society and the world? ( pollution, etc) solar energy is just taking the sun's energy and converting it into usable sources for our needs they are really expensive, [...]

Can solar panels to heat pool be used for other household purposes?

January 12th, 2009

Hi there, my father just bought a house that has solar panels on the roof to heat the water for his pool. The water goes through pipes by the panels and flows back into the pool. I was wondering if there is any way to use that solar energy for other areas of the house. [...]

How is renewable energy good for the economy?

January 12th, 2009

Can renewable energy truly be good for the economy, and how so? Renewable energy can be good once we have a storage system to store the sun's, wind's, etc's energy and use it when we need it. It is good for the economy because it is getting more and more expensive to dig up conventionals. [...]

Why is green energy referred to as alternative energy?

January 12th, 2009

Wouldn't it make more sense to call it "green," "clean," or "renewable" energy? Just what exactly is green energy an alternative to? Is it an alternative to global warming, dependency on fossil fuels, deforestation, depletion of the earth's resources, extinction of several species, and acid rain? Is it an alternative to fighting wars over oil, [...]

How much power is required to power a large family home?

January 5th, 2009

I am doing some research into setting up a wind turbine for my house. I see terms like 'kW hours' for energy or power consumption. If my house uses 1500kW hours of energy per week does this mean i need to run a 1500kW generator for 1 hour to satisfy my power needs? How would [...]

Which of the following are needed for animals to make energy?

January 5th, 2009

1. The powerful flight muscles of birds are attached to a large breastbone called the ____________. a. Gizzard b. Sternum c. Wing bone d. None of the above 2. Which of the following are needed for animals to make energy? a. carbon dioxide and oxygen b. food and oxygen c. water and oxygen d. None [...]