Different bars can withstand different weights. A 1lb bar can usually withstand up to 350lb, while a good 4lb bar can withstand up to 500lbs. However, a National Geographic survey (http://www.YouTube.com/watch?v=sfnGkV6qmTw&feature=related) states that a skilled punch can have as much as 612 lbs of force, so you may want to consider some other form of home security.
No door hinges and cabinet hinges are two different things. Door hinges are generally much larger than cabinet hinges. Cabinet hinges and door hinges are not at all the same. They are different sizes and can withstand different amounts of weight.
9billion tons
The exact weight of the vault door at Fort Knox is undisclosed for security reasons. However, it is estimated to weigh around 22 tons or 44,000 pounds.
One can get past a steel security door by removal of the screws, if it is an older door. Newer steel security doors are much harder to break into, and likely a key is needed or some major steel breaking device.
The knee joint can typically withstand forces of up to 4-6 times a person's body weight during activities like walking or stair climbing. However, excessive or repetitive stress on the knee joint can lead to injuries such as ligament tears or cartilage damage. It's important to strengthen the muscles around the knee and practice proper form during physical activities to help protect the joint.
It means you cant handle as much or you can only withstand a little bit
It depends on the bone. The femur (thigh bone) is much stringer than other bones.
2570pounds
depends upon 1) Mass of door 2) size of door and 3) Which planet the door is being weighed upon
Nonfunctioning door locks and security system can because by a bad fuse. Replace the security system for use with a new fuse. Most of the time this will fix the problem.
it depend on how much your doors been workin out :P
Door and window secuirty systems packages differ on price depending on how much you want in your package and which package you get and which company you decide to go with