1 Steel shingle metal roof: Installation can cost at least $600 per square foot for the shingles. 2  Or run $750 per square foot for a standing seam steel roof. 3  Aluminum metal roof: Can cost anywhere between $700 and $1,200 per square foot.
Mass is the amount matter in an object. Mass is usually expressed in grams/pounds. For example, if you had a mass of 100 pounds and you went to the moon, you would still have â¦ a mass of 100 pounds, because there is 100 pounds of matter in you. However, your weight, or the gravitational pull on you, would change.
A fundamental property of most particles of matter. The amount of mass contained in an object contributes to the strength of its gravitational field. Every mass attracts every other mass in the universe according to Newton's law of gravity. Along with length and time, mass is one of the properties which describe anything in the universe. It was this realisation of the significance of mass by Isaac Newton and others in the 17th century that helped usher in the modern scientific era.