1 Expect to pay somewhere around $4 to $8 per square foot installed for steel siding. 2  On an average-sized home, the total average cost might be $6,000 to $8,000, though in some cases might be as much as $10,000 to $12,000 or more.
Mass is a measure of the number of atoms in an object combined with the density of those atoms. Usually people measure mass in kilograms. You can tell how much mass something has by measuring how hard it is to get that thing to change directions or slow down. If you're driving a big truck, for instance, you're going to need a lot stronger brakes to stop the truck than if you were riding a bicycle.
Newton defined two different kinds of mass: gravitational mass and inertial mass. Inertial mass was defined as a property that causes resistance to acceleration. Galileo had previously discovered that the two properties were always in the same proportion to each other for every object. Newton knew this, but had no explanation for it. I guess that is why he called both properties âmassâ, though.