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Critical Mass is that minimum amount of fissionable material needed to maintain a chain reaction
The critical mass.
More data is needed. What is the material of the wire - copper -steel - etc. The physical units associated with the numbers are needed. Are they inches - ohms - etc. These units are needed. Please reformulate your query.
Steak
If tack welding is just for the purpose of holding the part in place then the welding tack size should be enough to hold it in place and should not exceed the final welding size. Spacing and number of tacks can vary depending on your requirement, but if enough space is available then try to avoid the consecutive tacks in the heat affected zone area of the previous welded tack. Usually spacing of 25 to 30mm is enough, increase the spacing as there is an increase in the leg size of the tack weld.
It depends on the thickness of the tube, the diameter of the tube and the shear strength of the material.
When you bend a material the fibers at the outer extremes of the material thickness stretch on side ( tension) and shorten on the other side ( compression). At the mid (neutral) plane of the thickness theer is no stretch or shortening, so theer is neithetr tension nor compression there
20000pcs
It depends on the thickness and width of the footings and the thickness and height of the foundation walls.
Another ruler
Parent Material
A great amount of material is needed to earn a theology degree. Most of the material consists of: Calculus, Chemistry, excellent English, and Physics.
Please let me know how to calculate, how much material of HDPE of specific gravity of 0.945 gm/cc needed to make a 10x10 size of bag with the thickness of 10 micron.
Oxygen is not needed in fermentaion.
its can be died without material in photosynthesis
Parent MaterialOxygen