A Million Green Ideas

A gas changes in volume from 0.830 m3 to 0.270 m3 at a constant pressure of 1.30 105 Pa.
(a) How much work is done on the gas?

(b) How much work is done by the gas on its environment?

(c) Which of Newton’s laws best explains why the work done on the gas is the negative of the work done on the environment?

Best reply by hello:

WD on gas = P x deltaV
WD by gas = negative of above
third law, I guess.

Read the original question here
How much work is done on gas and on its environment?

Clickbank Plugin

More Green Ideas

• Used WD’s Livewire AC outputs for Networking | comners
• Mustang GT vs. BMW M3 | CarBuyersNoteBook
• M3: angel of death | Medic Three
• BMW M3 GTS laps Nurburgring in a not so impressive 7:48 – egmCarTech

please help me find some statistics/facts about how gas powered cars affect our environment in a negative way. please include your source. thanks!

Best reply by Wingman:

Driving a car is the most air polluting act an average citizen commits. Air pollution is not a good idea for a variety of reasons, large and small. The right ideas for remediation of environmental degradations involve unselfish and compassionate behavior, a scarce commodity. The right ideas involve long-term planning, conservation and a deep commitment to preserving the natural world. Without a healthy natural environment, there will be few or no healthy humans. To understand air pollution you can consider a simple schematic that divides a big problem into components.

1. Local effects -e.g. poisoning humans breathing bad air.

2. Regional effects – fallout from airborne pathogens – infections, particles, chemicals.

3. Global effects – changing interactions between the atmosphere and sun, weather effects, effects on plants and oceans.

http://www.alphanutrition.com/environment/cars.htm

This one below, with all of the new roads being built, if it is paved over, plants cannot grow and provide oxygen to breath.
Infrastructure
Aside from industries, one of the most visible effects the automobile has had on the world is the huge increase in the amount of surfaced roads. For example, between 1921 and 1941, the United States spent US$40 billion on roads, increasing the amount of surfaced road from 387,000 miles (619,000 kilometers) to over 1,000,000 miles (1.6 million kilometers) which does not even take into account road widening.[2]

http://en.wikipedia.org/wiki/Effects_of_the_automobile_on_societies

Motor vehicle accidents are attributed to 37.5% of accidental deaths in the United States, making them the country’s leading cause of accidental death.[

http://en.wikipedia.org/wiki/Effects_of_the_automobile_on_societies

Here is an article on Greenhouse Gases and Society

http://www.umich.edu/~gs265/society/greenhouse.htm

Wingman

Read the original question here
What are some shocking facts about how cars affect the environment?

More Green Ideas

• Carbon Credits – Reducing Greenhouse Gas Emissions and Protecting the Planet! | The Effects of Global Warming
• Filipina Nurses Fired for Speaking Tagalog During “Nursing Shortage” | Discrimination | 8Asians.com
• EPA posts greenhouse gas reporting requirements « Millard Fillmore’s Bathtub
• Cricket bats could become a scarce commodity » The Roar – Your Sports Opinion

I have a van that gives 18 mpg. It has 170,000 miles on it. The wear shows but it is doing fine otherwise and all othersystems work. I have owned it for 8 years.
My next car will definitely be a Hybrid that gives more than 35 mpg.
My dilemma is:
I could trade this one now and start emmiting less green house gases.
or
I can drive the one I have for another 40-50k miles; thus delaying a cars worth of hard ware and mterial consumption for another 4-5 years.
So the question is: What is more environment friendly – Trading in old gas-guzzlers early for Hybrids or running them out for thier full life? Becaue after I trade this one in now, someone else will buy it and drive it for another 50,000 miles anyway, right?
What is worse: gas fumes of 300 gallons or Meterial for a brand new car?

Best reply by Joycee:

I own a hybrid so I can tell you..trade it in for the hybrid..We are always amazed at how far we can drive on one tank of gas.. Just the gas bill alone makes me happier

Read more replies
What is more environment friendly -driving an old gas guzzler out or traing it in for a hybrid?

Website Value Outlook

I have to answer this question for school “what you think YOUR neighborhood could do involving plants and trees and landscapes to better or enrich your community.”

Well I had the ideas of carpooling so that we will pollute less gas into the air. And to plant more trees, but I don’t know an explanation WHY planting trees would be helpful to our environment. 10 points for good answer!

Best reply by carrieirene85:

Trees give off oxygen which combats CO2 in our environment, which contributes to depleting the ozone layer. Oxygen fights this and makes our air more breathable and healthy.

Read the original question here
How will planting trees help our environment?

EnviroMission Limited (www.enviromission.com.au) produced this 5 minute video on the pilot plant in Spain. It is an older video (2000) but gives a decent understanding of the solar tower concept. EnviroMission, Ltd. (US Market: EVOMY, Australian Exchange: EVM) is a renewable energy developer of sustainable “green” energy solutions for the energy market. EnviroMission aims to be one of Australia’s leading producers of clean renewable energy. EnviroMission holds the proprietary rights to Solar Tower technology, a large-scale renewable energy technology based on simple fundamentals of physics — hot air rises. Solar Tower technology has the potential to offer competitive renewable energy with equal reliability to fossil fuel generators. A single 200MW Solar Tower power station will provide enough electricity to power around 400000 households. The energy output will represent an annual saving of more than 1960000 tonnes of greenhouse CO2 gases from entering the environment when compared to brown coal emissions in Victoria. The greenhouse savings equate to the removal of approximately 500000 cars from the road. The Australian Solar Tower project consists of six distinct phases, the first two of which (project optimization and pre-feasibility commercialization) have already been completed. The third phase (final feasibility), paving the way for the implementation of the next three phases (final design, construction, and commercial operation).