In electrical terms a core is an iron frame that wire coils are wrapped around to concentrate the magnetic flux that surrounds â¦ a wire when current flows through it. A good example of a core is in a transformer where both the primary and secondary windings are wound on to the same core.The magnetic flux that surrounds the primary coil when it draws a current will cut the secondary coil and induce a voltage into it. can't remember it on the top of my head from my science book. The definition is the core is the inner most layer of the eart and the hottest but is solid, because of pressur â¦ e from all of the other layers. I have the implanted in my head.
Best Answer: *Ounce is an unit of weight. 1 ounce = 0.028 349 523 125 kilogram 12 ounce = 0.340 194 277 5 kilogram 1 ounce = 0.062 5 pound 12 ounce = 0.75 pound Edit : If you are asking about can , then the answer will be different. The weight of an empty soda can is 0.5 oz (14 grams). The weight of a filled soda can is [0.875+0.75] pound. Source(s): http://www.onlineconversion.com/weight_a...
Confidence votes 267. Check the tare weight or (TW) on the tank this is the weight of the cylinder empty. TW 18.5 would be the weight of the bottle empty. If you weigh your bottle and it weighs say 27 pounds 27-18.5=8.5 pounds left in the cylinder.You can tell if a propane tank is empty by shaking it an listening to it.Swaying it about. The application you have linked it up to may not even ignite due to too little gas.ll propane cylinders will have a TW stamped in the valve protection ring. The tare weight or TW is the weight of the cylinder empty. TW 18 would be a 18 pound empty cylinder. â¦ If you weigh a TW 18 cylinder on a bathroom scale, and it weighs 28 pounds there would be 10 pounds of propane remaining in the cylinder.