Please note that there are different kinds of sand. A table on the site "Engineeringtoolbox" lists densities between about 80 and 125 pounds per cubic foot, depending on the type of sand, and on whether it is dry or wet.
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Play sand probably has abulk density of around 1500 kg/m3 (different sands have different values). So each cubic foot is 93 lb. Five cubic feet would be 465 pounds.
I once had a book about the ocean that claimed that there was 38 pounds of gold in one cubic mile of seawater. You could figure 1 cubic kilometer from here but you are still left with the validity of the claim of the book and even worse, my memory of that book. Still, something to play with.
A cubic centimeter of neutron star material would weigh approximately 400 million tons, which is equivalent to 4,000 aircraft carriers. Neutron stars are incredibly dense, with material packed tightly together due to the immense gravitational forces at play.
A child's intestines can be around 22-25 feet long when fully stretched out. The small intestine comprises about 70% of this length, while the large intestine makes up the remaining 30%. These organs play a crucial role in digesting food and absorbing nutrients.
The number of foot-pounds doesn't directly translate to FPS (feet per second) as other factors like bullet weight, shape, and size also play a role. However, there are online calculators available where you can input the energy in foot-pounds and the bullet weight to get an estimated velocity in FPS.
The biggest German Shepherd on record weighed around 170 pounds and stood over 3 feet tall at the shoulder. Generally, males tend to be larger than females in this breed. Proper nutrition, exercise, and genetics all play a role in determining a German Shepherd's size.