This is what i thought.
It is a homework problem but i wasn't asking for the answer, merely if it was possible to solve. The dimensions of the beam are known so i agree the stresses are quite straightforward. The question very clearly asks for the "maximum bending strain" though. Could i...
Very simply put.
Is it possible to determine bending stress in a beam without knowing the young's modulus of the material used? All equations I've seen seem to include in some form an E value ( young's modulus), which is used in conjunction with a stress value to evaluate the strain.
i know its a bad example because extra matter can't just appear in the sun
maybe if the sun was instantly replaced by a black hole of the same volume (with much larger mass)
i know its impossible but just interested with the speed of gravity as such
think it would be because CO2 disolved in the wine is heavier than just wine so it sinks to the bottom
if that's the reason i wonder where the bubbles would form in space with not much gravity
1. If gravity waves travel at the speed of light and it take about 8.5 minutes for to reach Earth from the sun, If the sun suddenly collapsed into a black hole would it take 8.5 minutes for us to start being pulled in?
2. If you could somehow set up 2 mirrors facing each other than...