Out of mw, uv rays and ir rays, which radiations will be the most effective for emission of electrons from a metallic surface?.

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .