Three forces, each having a magnitude

  • Thread starter Thread starter ksn
  • Start date Start date
  • Tags Tags
    Forces Magnitude
ksn
Messages
4
Reaction score
0
Three forces, each having a magnitude of 30lb. pull on an object in directions that are 120 degrees apart from each other what happens
 
Last edited by a moderator:
Science news on Phys.org
Draw a free body diagram, split the forces into X and Y components, add them together, and find out!
 
Thread 'A quartet of epi-illumination methods'
Well, it took almost 20 years (!!!), but I finally obtained a set of epi-phase microscope objectives (Zeiss). The principles of epi-phase contrast is nearly identical to transillumination phase contrast, but the phase ring is a 1/8 wave retarder rather than a 1/4 wave retarder (because with epi-illumination, the light passes through the ring twice). This method was popular only for a very short period of time before epi-DIC (differential interference contrast) became widely available. So...
I am currently undertaking a research internship where I am modelling the heating of silicon wafers with a 515 nm femtosecond laser. In order to increase the absorption of the laser into the oxide layer on top of the wafer it was suggested we use gold nanoparticles. I was tasked with modelling the optical properties of a 5nm gold nanoparticle, in particular the absorption cross section, using COMSOL Multiphysics. My model seems to be getting correct values for the absorption coefficient and...
Back
Top