If the theoretical tensile strength of flawless Borosilicate Glass is 5.6 GPa, what is the maximum allowable length of an internal elliptical flaw, whose radius of curvature at the flaw tip is 5 micrometers, if the part must withstand a tensile stress of 250 MPa

What is the difference between electrically neutral objects and electrically charged objects

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

Distinguish between a transverse wave and a longitudinal wave.