Steel Propeller

who could answer this simple physics problems? I.To what height can a piece of structural steel weighting 2 tons be lifted if a work amounting 110,000 ft-lb is done on it? How many hp required to lift in 60s? II.If 250 hp is used to drive an airplane 100mi/hr, find the average force exerted by the propeller. III.10,000 watts of power is expanded by a pump to raise 3,000 L of water from a well in a minute. How deep is the well? (1L = 10N) need computation of each and broad explanation... thanks! knr could answer this simple physics problem.

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Wooden Boats - Are Wooden Boats Really Better?

Boats are an object of desire for so many people. Whether they have the money to buy a boat is a separate question, but all the same, economic question is not a lid on the dreams and aspirations of people. Indeed, some people think that if they made a lot of money, they would buy a boat and retire, so in a sense, buying a boat is an idea that propels them to success in career and financially too. Now when it comes to buying or building a boat, a lot of people wonder as to which is the best material for the boat to be constructed of.

There are so many materials available to make the boat of, and yet over the ages and even now, wooden boats are indeed acclaimed as some of the better boats that there are. There are a few reasons for this, and it is not without reason that wood reigns as the material par excellence for boat building. For one, if you consider the strength of the material, you will be amazed to know that wood is stronger for its weight than steel, fiberglass and aluminum. Sure, you can get very strong steel, aluminum or fiberglass, but it would be so heavy that it would just not float. After all, a boat needs to float, doesn't it? So wood is great.

Wood is quite lightweight too and is excellent for flotation. True it can rot somewhat, but if you use some epoxy and fiberglass at the bottom of the boat, it would weather the elements quite effectively and last well for many years indeed. There is no wonder why over the ages, wood has been used extensively for boat building. You can easily fashion wood into a floating vessel that can give you joy and pleasure for many years to come, justifying the use of boat as an excellent boat building material.

Finally you must remember that decent boat design software helps you to build the boat of your dreams.

Probably the best idea is to get some sort of 3D boat design software that is affordable, easy and flexible to use and is suitable for anyone from the hobby model boat builder to professional mass ship producers.

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About the Author

Rest assured, I have tried 3D Boat Design and can personally recommend this product.

From my review I have found that 3D boat Design is easy to use, very flexible and is everything you need to design a boat, yacht or ship.

This is an amazing piece of software at a bargain price, you can not lose.

Francis Drake

Independent Reviewer

http://www.3DBoatDesign.net