Two Bar

Calculating the force between two magnets?

Hello, I know the expression of the force between two magnets with the normal form of physical correction. You can assume any physical constants of the magnets are necessary. But tell me what are the factors that depend on these constants. For example, the distance depends between the two? (How different would the result if the area was called the move?) (Note that the circular area thing is optional ...)

Using Maxwell equations and check this link http://www.madsci.org/posts/archives/1999-07/931448481.Ph.r.html

Allen Tension Bar Bicycle Cross-Bar Adaptor Allen Tension Bar Bicycle Cross-Bar Adaptor
List Price: $19.99
Sale Price: $12.50
Used From: $31.99

Bicycle Cross-Bar Adaptor

Made by Allen Bike Racks, this adaptor bar adds a top tube to your bicycle frame so that it can be installed properly on a bicycle carrier. It's designed to be used with hard-to-mount bike frames, such as full-suspension bikes, women's bikes, or other non-conventional designs. The bar features an internal spring that maintains constant tension to keep your bike secure. The product is designed to fit bikes that have a distance of 16 inches to 27 inches between the seat post and the stem, and installation is easy. Plastic-coated hooks are there to protect the finish of your bike. Manufacturer's Warranty All of Allen's products are backed by a no-nonsense lifetime guarantee. If an Allen Rack fails to function properly due to a defect in workmanship or material over the lifetime of the original purchaser, simply return the product with your original receipt, and Allen will repair or replace the rack free of charge. This warranty does not cover damage or wear which occurs as a result of day-to-day use or general wear and tear. About Allen Sports USA Allen's goal is to design and manufacture the finest bicycle carrying, parking, and storage racks available. Ever since Dick Allen started making rear-mounted bicycle carriers in his garage in Lincoln, Massachusetts, in 1967, the company has been committed to producing the highest-quality, easiest-to-use racks on the market.

Cap Barbell Weight Bar 2-Inch Zinc Plated Combo Hex Bar Olympic Cap Barbell Weight Bar 2-Inch Zinc Plated Combo Hex Bar Olympic
List Price: $175.00
Sale Price: $85.00

CAP Barbell's Combo Hex Bar combines the raised handle of the high hex bar and the flush handle of the regular hex bar creating a multi-functional exercise bar. Collars are not included. 750 lb weight capacity. Made of solid steel.

Ka-Bar 2-1245-1 Black Tanto Knife Ka-Bar 2-1245-1 Black Tanto Knife
List Price: $82.03
Sale Price: Too low to display
Used From: $53.88

The Tanto blade shape, of Asian influence, has a thick pointed blade that's good for penetration. Coupled with a glass-filled nylon sheath this knife is designed for the toughest of tasks. Glass-filled nylon sheath included.

Equipped with an Asian-influenced Tanto blade shape, this Ka-Bar combat knife is designed for the toughest of tasks. The Tanto blade is made of 1095 Cro-Van steel, with a thick pointed blade that's great for penetration. The manmade Kraton G handle, meanwhile, is comfortable in the hand. Add in a glass-filled nylon sheath and you have a terrific knife for combat applications. Specifications Stamp: USA Shape: Tanto Edge angle: 20 degrees Blade: 1095 Cro-Van steel Pocket clip: N/A Lock style: N/A Grind: Hollow Handle material: Kraton G Blade length: 8 inches Overall length: 12-7/8 inches Weight: 0.75 pounds

Ka-Bar 2-1212-3 Black Fighting Knife Ka-Bar 2-1212-3 Black Fighting Knife
List Price: $70.73
Sale Price: Too low to display
Used From: $46.99

A partially serrated edge makes cutting looped and synthetic material a breeze. Blade marked 1211. Includes leather sheath.

Ideal for camping, nautical, and a host of other uses, the Ka-Bar full-size knife is tough and long lasting. The knife blade measures 7 inches long, with a partially serrated edge that makes it easy to cut looped and synthetic materials. The blade's 1095 carbon-steel material, meanwhile, has proved to be one of the most popular steels used in Ka-Bar knives. Easy to sharpen and built to hold up to heavy use, the blade also offers a 20-degree edge angle for serious cuts. The knife--which includes a 1211 mark on the blade--comes with a leather sheath. Specifications: Blade length: 7 inches Overall length: 11-3/4 inches Shape: Clip Stamp: USA Edge angle: 20 degrees Steel: 1095 cro-van Grind: Flat Handle material: Kraton G HRC: 56-58 Butt cap/guard: Powdered metal/1095 carbon Weight: 0.66 pounds

Cap Barbell Weight Bar 2-Inch Zinc Plated Hex Bar Olympic Cap Barbell Weight Bar 2-Inch Zinc Plated Hex Bar Olympic
List Price: $175.00
Sale Price: $85.00

CAP Barbell's Zinc Hex Bar is the best tool to perform dead lifts and shrugs. The bar is zinc plated to protect against rust. Made of solid steel. Collars are not included. Accomodates 2" plates. 1000 lb weight capacity.

Cap Barbell Weight Bar 2-Inch Zinc Plated Mega Hex Bar Olympic Cap Barbell Weight Bar 2-Inch Zinc Plated Mega Hex Bar Olympic
List Price: $215.00
Sale Price: $125.00

Built for the biggest and strongest lifters, CAP Barbell's Mega Hex Bar combines the handle placement of the high hex bar and the regular hex bar. Simply flip over to change exercise starting position. 1000 lb weight capacity. Collars are not included. Accomodates 2" plates.

ProSource Heavy Duty Easy Gym Push-Bars (Set of 2) ProSource Heavy Duty Easy Gym Push-Bars (Set of 2)
List Price: $15.99
Sale Price: $14.06
Used From: $10.36

Outside of training with free weights, no other exercise builds and tones your triceps and pectorals better than the classic push up. These ProSource Heavy Duty Push-Up bars allow you to take your workout to the next level by reducing the stress on the wrist from doing a push-up in the traditional way while, and also allowing you a greater range of motion and exercise variety. This means you can take your workouts to the extreme with a greater amount of exercises and less stress on your joints and bones. This greater range of motion also allows you to work your muscles in a more efficient manner, increasing the muscle building and toning effects of traditional push-ups. As an added bonus to the benefits you will see in your work-out routines, these stands are designed with portability in mind so you can easily store them in an unobtrusive spot or take them with you on the go.

Take your workouts to the next level with this set of ProSource Easy Gym pushup bars. Outside of training with free weights, no other exercise builds and tones your triceps and pectorals better than the classic pushup. These bars allow you to enjoy a greater range of motion than traditional pushups while also reducing the stress on your wrists. And a greater range of motion means better workouts, increasing the muscle building and toning effects of each exercise. As an added bonus, the bars are designed with portability in mind, so you can easily store them in a closet or take them with you while traveling.

Thule LB58 Roof Rack Load Bars (58-Inch, Set of 2) Thule LB58 Roof Rack Load Bars (58-Inch, Set of 2)
List Price: $89.95
Sale Price: $71.96
Used From: $70.00

Thule classic square load bars are available in a variety of lengths and deliver maximum load carrying capacity

Square bars for custom rack creation. View larger Cold rolled, galvanized steel sealed in polyethylene for long lasting durability. View larger Compatible with a variety of Thule foot packs. View larger Square Bars for Custom Thule Rack Creation The Thule product line of square load bars allows users to create their own custom roof rack solution that is tailored to the specific needs and dimensions of their vehicle. The bars are sold in pairs and come in a variety of lengths, including: 50", 58", 65" and 78". Constructed of cold rolled, galvanized steel with welded seams, they are designed for maximum strength and long life. The bars are compatible with a wide variety of Thule foot packs (sold separately), including: 450 Traverse, 300 Rain Gutter, 480 Traverse, 430 Tracker II and the 460 Podium. The bars are made of galvanized steel coated with a tough polyethylene material for long lasting durability and to seal out rust. They are compatible with most Thule rack accessories, such as cargo boxes, ski and snowboard carriers, and so on. The ends of bars can be sealed with end caps (sold separately) to keep out moisture and lessen wind noise. Key Features Square bars for custom Thule roof rack creation Bars come in a variety of lengths, including: 50", 58", 65" and 78" Cold rolled, galvanized steel with welded seams for maximum strength Coated with a tough polyethylene material for long lasting durability Compatible with a range of Thule foot packs including: 450 Traverse, 300 Rain Gutter, 480 Traverse, 430 Tracker II and the 460 Podium What's in the Box One 58" pair of Thule square load bars (end caps not included) Limited Lifetime Warranty Thule will warranty all Thule brand car rack systems and its accessories manufactured by Thule during the time that an original retail purchaser owns the product. This warranty terminates if a purchaser transfers the product to any other person. No warranty is given for defects caused by normal wear and tear, cosmetic rust, scratches, accidents, unlawful vehicle operation, or modification of, or any types of repair of a load carrier system other than those authorized by Thule. About Thule Thule was founded in 1942 by the Thulin family, when Eric Thulin, a true lover of the outdoors, put the Thule name on a pike trap he designed and began to sell in Scandinavia. It wasn't long before he added other practical items to the company's portfolio. By the 1960s, the company began to concentrate on car-related products, including its first roof rack. The Thulin family sold Thule to the publicly listed company Eldon in 1979, and it has continued to grow both organically and through acquisitions ever since. The Thule Group is a world leader in providing transport solutions for an active life.

Ka-Bar Becker BK2 Campanion Fixed Blade Knife Ka-Bar Becker BK2 Campanion Fixed Blade Knife
List Price: $106.72
Sale Price: $62.91
Used From: $58.88

For all those who camp, hunt or spend time afield. The Campanion works just as happily splitting out kindling as it does prying apart joints and skinning game, not to mention chopping onions for the campfire chili!

Perfect for camping and/or hunting, the Ka-Bar Becker Companion Knife has the strength for splitting kindling, and the sharp edge required for skinning game or chopping onions for the campfire grill. Designed for everyday utility, the knife has a 5.5-inch drop point blade of 1095 cro-van steel, that can puncture and slice with a versatile 20-degree edge angle. The Grivory handle, meanwhile, provides a balanced grip for any outdoors chore. The fixed blade knife measures 10.5 inches long overall, and is easy to carry with the included glass-filled nylon sheath. Made in the USA, the Companion knife is built tough to handle all your outdoor adventures and carries a limited lifetime warranty against defects in materials and workmanship from Ka-Bar. Specifications: Weight: 1 pound Blade Length: 5.25 inches Overall Length 10.5 inches Grind: Flat Shape: Drop point Edge Angle: 20 degrees Steel: 1095 Cro-Van Handle Material: Grivory Stamp: Ka-Bar Becker Knife Made in USA Sheath Made in Taiwan Limited lifetime warranty

Bring the KA-BAR Becker Companion Knife and Tool along on your next hunting or camping trip. This lightweight knife features a durable, 1095 cro-van steel blade, perfect for splitting kindling, skinning game, or chopping onions for the campfire grill. This knife features the drop point blade shape and a versatile 20-degree blade angle. The comfortable handle is made from Grivory, providing a balanced grip for any outdoor chore. The flat blade is five and a half inches long and the overall length is ten and a half inches. The knife includes a glass-filled nylon sheath to keep the blade safe and sharp. Made in the USA, the Companion knife and tool is tough enough to handle all your outdoor adventures.

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