Recent content by classicphysic

i am waiting for the help people...checking it every hour but no body answers it

Homework Statement calculate the angular momentum vector L Homework Equations r = rr(hat) r=√(xsquared + y squared) r(hat) = <cosθ, sinθ> v = r(dot)r(hat) + rθ(dot)θ The Attempt at a Solution L = mv X r I don't know m, how can i calcuate L? please help me

hello guys if the water surface is at same temp as air above, and humidity is 100%, do any wataer molecules leave their liquid state to become vapour ie evaporate? I couldn't remember what professor said exactly, so i checked up on internet and it says water can't evaporate at 100%...