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The main advantages of electric cars are convenience, environmental benefits and fun. EVs are fun to drive while you are doing good things for the world. How so?
First, let's take a look at the conveniences of battery powered electric cars:
1. EVs are simple to start compared to gas powered cars. You never really "start" the car. As long as the batteries are charged up, all the driver does is close the switch and the car is on! No more accidentally grinding the starter or waiting for the car to warm up. Turn the key; put it in gear, and go.
2. No more tune-ups with an EV. You may need to change out the battery pack once in a while or replace a fuse, but the EV is very low maintenance. Engine repairs are almost not existent since electric motors are very reliable and long lasting. Older motors may require some work on the brushes, but not much, and hardly anything compared to the work required to keep an old gas powered car going!
3. Cheap to operate. At this time, electric cars are still expensive compared to gas powered cars. This has to do with the higher cost of relatively newer battery technologies, and the lack of real mass manufacturing of the components - economy of scale. However, the EV costs only a few cents per mile to drive. The new Nissan Leaf costs about $0.03 USD for the electricity! Try that with a gas burner.
4. EVs are cool. At the present there are not many electric cars around. EVs are different, and still pretty cool. Maybe you can get a date over your EV!
Next, the environmental benefits:
1. Cleaner air. Note that we do not claim that EVs have zero environmental impacts. All vehicles and manufactured machines in general put some dent in the environmental fabric. However, EVs are cleaner than gas powered rigs, the carbon argument notwithstanding. It is argued that if the source of electricity is coal fired power plants that you are just moving the pollution from one place to another. This can be shown to be correct in some cases, but overall it is a lame attempt to resist improvement.
Number one; there is the option to switch to cleaner energy sources such as wind, solar, wave, geothermal and solar power. In fact, it would be a good thing if EVs could force this switch!
Number two; electric cars use energy more efficiently than gas powered cars. Gas powered cars waste about 2/3 of their fuel in excess heat...gone, bye bye, up and away. Just think that of every $1.00 you put in the gas tank, only $0.33 goes towards actually moving you towards your destination! Electric cars use almost all of their energy to move forward to where they are going. What a concept! Take a look at any electric car today, they carry the energy equivalent of like 1 gallon of gasoline, but are doing the same job in many cases. So, less energy used means less pollution any way you shake it.
2. Attitude. It is all about attitude the coaches tell us. It is no different with cars. If you have an attitude of disrespect for the air you breathe, you will help make it less breathable. That's fine, except that people with this attitude also junk up the air for the rest of plants, animals, and people here on this 3rd planet from the sun. Electric cars help promote an awareness of conservation of resources and an attitude of gratitude for the resources we have and need to keep on keepin on.
3. Conservation of resources: Since transport uses much of the World supply of petroleum, and the World is facing Peak Oil at some point here, electric cars have the advantage of helping in a major way to conserve existing petroleum reserves. This will help preserve lower costs to consumers and ease shocks from the pounding of peak oil.
EV Fun:
Finally, remember the Fun! Here is an interesting and not much talked about aspect of the electric vehicle: the EV Grin.
For some reason, almost everybody that first drives an electric vehicle gets this kind of grin, smile or whatever. It has been called the EV Grin. There is something about the silent, smooth power of the electric car that just makes the driver smile.
Electric cars (set up properly) are quick off the line and run smooth. There is no shifting required many times, and the driving is easy and fun. At stop lights you do not need to worry about revving up off the line, or holding your foot too hard on the brake, unless you own an EV like the Tesla which is programmed to "idle" like a contemporary car.
EVs can smoke the tires too. If you are so inclined, take advantage of that low end torque and smoke it!
These are some of the advantages of electric cars. Of course there are drawbacks to EVs, but that is another article.
Happy Motoring!
Thanks for checking out this article.
For more on electric car advantages, just visit: http://evsroll.com/Advantages_of_Electric_Car.html
For more on the entire EV story, visit: http://evsroll.com/
Homeland Security Jobs in the US – Booming Job Market
In the wake of 9/11 the homeland security business is still booming, and now it eclipses mature enterprises like movie-making and the music industry in annual revenue. In this multi-billion business airport security was the initial focus, but during the past years the industry has expanded into a wide range of companies hawking all kinds of products and services for securing nearly every imaginable terrorist target. The homeland security industry now includes border, rail, seaport, industrial and nuclear plant protection as well as chemical, biological and radiological detection. One of the biggest customer in the field is a post-9/11 creation, the U.S. Department of Homeland Security. This is a federal agency whose primary mission is to help prevent, protect against, and respond to acts of terrorism on United States soil. Apart from the “traditional” duties, the U.S. Department of Homeland Security received in April this year authority from the congress to waive all legal requirements necessary to expeditiously install additional physical barriers and roads at the border to deter illegal activity. According to Secretary Chertoff: "Criminal activity at the border does not stop for endless debate or protracted litigation," "Congress and the American public have been adamant that they want and expect border security. We’re serious about delivering it, and these waivers will enable important security projects to keep moving forward." This extention of activities will again boost the job market and if you are interested in working in this field you should consider to jump on the train. Actually there are over 20,000 jobs published on the internet and the trend is going up (see resource box).
Climate change is an other challenge that will requiere more investments in the homeland security field in the future. According to an article published by Joshua W. Busby of the University of Texas at Austin in the Washington Post on March 22, 2008, the US government needs to take action on risk reduction and adaptation, mitigation of greenhouse gas emissions, and institutional changes in the U.S. government to prepare the U.S. to deal with the threat posed by global climatic disruption.
“Climate and security concerns do not get the attention they deserve in the U.S. government because they have few high-level champions. A new deputy undersecretary of defense position for environmental security should be created to redress the insufficient institutionalization of climate and environmental concerns in the Department of Defense. That said, we should not confuse national defense with what the military can do. As the risk reduction agenda makes clear, other instruments of national power will also be needed. To that end, the U.S. needs several senior positions in the National Security Council dedicated to environmental security, including a Deputy National Security Advisor for Sustainable Development to guide the inter-agency process. The links between climate and security still might not get sufficient attention. A special advisor to the president on climate change with some budgetary authority might also help.”
As a conclusion, homeland security is a booming market for job seekers and the trend will continue for at least five to ten years more. One major terrorist attack in the United States, Europe or Japan could increase the global market in 2015 to $730 billion, more than a twelvefold increase from today’s level, according to Tomer Amit, vice president of Homeland Security Research. “Most of the growth this decade will come from building what Homeland Security Research calls "a homeland defense infrastructure." Growth areas are likely to include technology for surveillance and for detection of nuclear and other weapons of mass destruction”, Amit says.
All indicators are showing green light for starting a career in this promising and highly interesting industry.
About the Author
Oswald J. Eppers is manager of the consulting firm E&R InterConsult and founder of the Two-Approach Job Search Guide for easy and effective Job Searching and Career Assessment. Browse his Homeland Security Job Database to find 20,000+ published homeland security vacancies.
chemistry questions help PLEASE!?
Given the reaction
N2=3H2=2NH3
what is the total number of moles of NH3 produced when 10 moles of H2 reacts completely with N2
1. 2.0
2. 3.0
3 .6.7
4. 15
2.what is the minum number of moles of O2 requiered to produce one mole of CO2?
1. 0.50
2.1.0
3. 2.0
4. 0.25
3. A sample of H2 at STP contains 9.03x10^23 molecules. the volume of the sample is?
1. 33.6L
2. 44.8L
3.22.4L
4. 11.2L
what is the volume of 4.00 moles of CO2 gas at STP?
1. 22.4L
2. 89.6L
3. 11.2L
4. 44.8L
once again, not gonna give answers, but some clues to help you:
1.) look at the reaction and not the ratio of moles between H2 and NH3. 3 moles of H2 makes 2 moles of NH3, so how many moles of NH3 will come from 10 moles of H2? very simple math here...
2.)you'll have to provide a reaction here. but look at the number of oxygen atoms in O2 and CO2...
3.) STP is 1 atm and 273 K. at this temp and pressure, 1 mole of gas occupies 22.4 L... 1 mole is 6.02x10^23 molecules, so find the number of moles and then multiply by 22.4 L.
4.) 1 mole of gas at STP occupies 22.4 L, so 4 moles occupies??
again, these questions are really simple if you just try, so please try and learn it. it really can get interesting later on.
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