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Solid? or Hollow?
Pinewood derby axles are one inch long, 0.087 inch diameter zinc plated steel nails.
Need diameter as well.
for density of steel @ 7850 kg/m3 you can use No of bars (12 m long) per ton = (13500 / D2) where D= bar diameter in mm
it is about d`ball diameter long
the diameter of the lithosphere is 124.27 miles long
Mars is 6,794 km in diameter
one is long you dumb person
30 inches. The diameter is twice the length of the radius.
the perimeter is 3 times as long as the diameter Example: if my diameter is 7 inches long my perimeter is 3 times as much so it is 21 inches long
It's a steel shaft about 1/4 inch diameter, 6-8 inch long, with a flattened and squared off end and a wood or plastic handle at the other end.
Dr. Steel Read-A-Long was created in 2006.