I gots some useful information from theses guys regarding building chicken runs ,from now on I am going to be keeping my own chickens. I learnt a lot from this ebook that they recommended and ended up using some recycled timber I had lying around. the plans were very thorough, you might want to check it out if you would like to introduce chickens to your garden.
If y= 0.03sin(50x-500t) (SI units), and if the mass density of the string on which the wave propagates is 0.005 kg/m, then the transmitted power wave is _____ .
http://hyperphysics.phy-astr.gsu.edu/Hbase/Waves/powstr.html has boxes you fill in to get the answer. you should have a look at the equation though and make sure you know how to get the answer!!
Where can I find the PCB design of a Power Supply for a full wave rectifier with zener diode?
Every one is different, you won’t find a pre-made PC board design for your mix of parts.
But first get it operating correctly, then use a Prototype PC boards. Zener regulators alone are very inefficient regulators and are rarely used for this application, so you should check that the design performs to your specs. Email me if I can help.
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I know that there are many advantages but also disadvantages of wind power, but overall would it help our environment?
Wind power is having a positive impact, at this point, on manufacturing, and definitley on employment. In the country, farmers/ranchers are enjoying monthly/yearly income with the installation of these wind generators on their properrty. A good thing. Power transmission lines need to be installed to get the power distributed to wherre it can be consumed, again providing job opportunities. One bit of concern, are migrating birds, such as ducks, geese, an cranes going to be decimated in numbers if they fly into the rotating blades, possibly. It will take years and years of construction of wind generated power to fulfill our needs at current levels of power consumption. Therefore, coal, water, natural gas, and nuclear will continue to dominate the power scene.
If y= 0.03sin(50x-500t) (SI units), and if the mass density of the string on which the wave propagates is 0.005 kg/m, then the transmitted power wave is _____ .
P = ½ μω²A²v => power transmitted by wave on a string.
angular velocity: ω = 500 rad/s
mass density of string: μ = 0.005 kg/m
amplitude of wave: A = 0.03 m
wave constant: k = ω/v = 50 = 500/v,
wave velocity: v = 500/50 = 10 m/s
P = 0.5*0.005*500²(0.03)10 = 187.5 watts
I want to take a regular motor and change it to make wind power. Can anybody give me a website that show me how to do this (or something like it). Please do not give a website that makes you buy something. I want a website that show me how to do it.
Try these links.
If you want to build even larger turbines, just search "how to build a wind turbine." Some people have built very large ones at home.
a. it can be obtained with no cost to the system.
b. it can be spend with no cost to the universe.
c. the organisms can live free of it if necessary.
d. it is available to do work.
e. it is equivalent to the systems total’s energy.
I’m not sure what the answer to your question is, but if it helps, big breasts could certainly catalyze the reaction by dramatically lowering its energy of activation.
i was wondering if it actually works because i dont wana waste money if it doesnt work
i haven’t been able to find it anywhere but my friend bought it at jean-coutu and she let me borough it and it made my skin softer, but i only used it the once so it’s hard to tell if it will get rid of acne seeing as i don’t use it on a daily basis… but I would say go for it!
I don’t understand… the engineering…
A machine… a helicopter run on plasma?
Does the technology really work?
Is the technology being deliberately witheld?
http://freeenergynews.com/Directory/Geet/
Any serious comments to assist, greatly appreciated.
Just because it’s on the internet, doesn’t make it true.
try to exercise your critical thinking skills,
This might help.
http://www.randi.org/
I’m thinking specifically about submarine sonar sensors. If two waves were emitted in the same medium (ocean water), with the same negligible environmental interference, and at the same power, which would travel farther? I know a typical sonar "ping" is high pitched (high frequency), but is this because it travels farther or because it is easy to differentiate from other noises when being detected.
The higher the frequency, the more signal loss is suffered over a given range through absorbtion (transfer of sound energy into heat).
