15 in cube = 3375 cu in, 5 in cube = 125 cu in, 24 of those = 3000 cu in, so the large cube weighs about one eighth (12½%) more.
copper and iron
The Iron Hypothesis was a proposal that in certain parts of the ocean, the limiting factor on phytoplankton growth was lack of trace metals, in particular Iron (Fe). This hypothesis has been tested and proved to be correct. In regard to "spheres", the question therefore fails to make any sense.
Coat the interior and the exterior of your cast iron griddle in butter. Place the griddle in the oven at 200 degrees for a couple of hours. Wipe the griddle off after.
Maltese or Iron Cross!
Wrought Iron fences are very strong, but typically used for more decorative installations. If you are looking to keep people out, or things out of view, you may want to consider a strong chain link fence with the slats added for limited visibility.
Iron weighs 0.284 pounds per cubic inch, while cast iron is about 0.25-0.27 pounds per cubic inch, due to how it is made and processed. So pure iron is heavier
Iron is magnetic, lead is not.
The answer will depend on the size of the cube.
The iron boat is an "empty shell" with air filled space inside, reducing its density compared to the iron cube which is iron all the way through.
Density isn't a property of the size of the material. rather, it's a property of the matter itself. In other words, it doesn't matter if you have 1 billion microscopic cubes of iron or a 40,000 ton cube of iron... It's all iron, so it all has the same density.
Well, darling, a 1-cm cube is a tiny little thing, measuring 1 centimeter on each side. If your mass is 0.10g less than the mass of a 1-cm cube of iron, then you're just a lightweight compared to that chunk of iron. But hey, at least you're still a cube!
The volume of a cube of iron that is 2.50 cm on each side is: 15.63 cm3
No, the buoyant force experienced by an object depends on its volume and density. Since the cubes are made of pure iron, their densities will be the same, but the larger cube will displace more water due to its greater volume, resulting in a greater buoyant force compared to the smaller cube.
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That depends on the density of the material in the cube. It would be different if, say, the cube were made of ice, iron, or gold.
Gray cast iron is around 118 grams per cubic inch.
It depends on the weight and length of the iron rods. On average, a standard 1-inch diameter iron rod that is 20 feet long weighs around 13.5 pounds (6.12 kg). Therefore, it would take approximately 146 iron rods to make a ton (2,000 pounds or 907 kg).