Count the number of blacks and the area of each block. Multiply the two.
Not counting the space for sand between the blocks, it would take11,520/(area of each block in square inches)blocks.
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Calculate volume of molecule, calculate mass of molecule, compare to bulk density. Lower bulk density indicates empty space.
That would be called surface area. The way to calculate surface area varies depending on the shape of the surface. A quick google search such as "how to find surface area of a sphere" should solve your dilemma.
weather and climate
It is called an eclipse.
The Space Shuttle refers to NASA's particular space plane, whereas a space plane encompasses all aircraft which takeoff from Earth's surface into space and then land on return.
On average, the ISS (International Space Station), is about 199 to 215 miles above the surface of the Earth.
up mean on the surface and over mean in the space
if it is 16in by 16in blocks then 426 to 427 blocks if it is 16ft by 16ft blocks then just 1. You will haveto cut part of the block tho and move it to the open space.
The sample space depends on what the trial or experiment is.