Nothing.
16" by 1 ft is a 2D measure of area - with no thickness. No thickmess (or height) means no volume. No volume means no mass and no mass means no weight.
Simple!
On average, concrete weighs about 12.5 pounds per square foot per inch thick. This can vary based on the type and density of the concrete mix.
Where are 12 inch concrete blocks applied?
4824 -5544 pounds.
2000 pounds
It would weigh about 14.3 pounds .
Cooper weighs 542 lbs. per square foot. So, 542 divided by 1,728 (the number of inches per square foot). One cubic inch of copper weighs 0.31 lbs., or about 5 ounces.
Nothing--in space
A 6-inch concrete slab can typically support around 150 pounds per square foot.
100-115
152 pounds
40
125 lbs