Magnetism.
In any rotation the perpendicular distance coverd called moment arm . & also called position vector. for example :. in door the perp; distance b/w door & wall.
They use saws to cut down the door, or they kick it down. They have method of entry tools - either a sledge hammer or a door breach. That's like a battering ram - 23 kilos and 29 inches or so. for one or two man use.
they use oak trees. they used wax to keep the longships waterproof
the monks protected themselves from viking in a round towers when the vikings came the monks grabbed anything valuable and climbed to the door and then pulled up the ladder .If you want to see a round tower go on google images.
Uncle Sam
A magnet sticks to a refrigerator because the refrigerator door is made of a ferromagnetic material, such as steel. The magnet and the refrigerator door have opposite magnetic poles, causing them to attract and stick together.
Metals with magnetic properties can be applied in this case. Magnets are often used along the edges of refrigerator doors, as they can produce a tight seal with the opening of the refrigerator. This way, there will be less heat gain into the refrigerator compartment and would save energy needed for the coolers.
The force at play is called magnetic force. It is the attraction between the iron nail and the iron refrigerator door due to their magnetic properties.
Refrigerator door works with the help of magnets which are attached behind the rubber seal on the door which attracts to close the door and doesn't open without any force Maheshwari - VI - Sri Aurobindo International School, Hyderabad
A refrigerator magnet holds a message on the refrigerator door by creating a magnetic field that attracts to the metal surface of the fridge. The magnet's force is strong enough to overcome the force of gravity, allowing it to hold the message in place.
The weight of a refrigerator door can vary depending on the size and material of the door. On average, a refrigerator door can weigh between 15 to 30 pounds.
It typically takes about 10-15 pounds of force to open a refrigerator door, but this can vary depending on the design and condition of the door's hinges and seal. The force required is usually within an average person's capability to open comfortably.
form_title= French Door Refrigerator form_header= Install a new french door refrigerator. How much space do you have for a refrigerator?*= _ [50] Do you want the freezer on the bottom?*= () Yes () No What finish would you like on the refrigerator?*= _ [50]
To fix a door that sticks at the top, you can try tightening the screws on the hinges, sanding down the top edge of the door, or adjusting the door frame.
Magnetic strip is used in door of refrigerator. Can I replace it if it not keeping the door closed?
You can purchase french door refrigerator online at www.bestbuy.com/.../Refrigerators/French-Door-Refrigerators/abcat0..., www.homedepot.com/Refrigerators
The double door will usually work out better. You will be able to only open the compartment that you need, keeping the air in for the rest of the refrigerator.