The stopping potential of most energetic photoelectron emitted from a metal is three

times of initial when the wavelength of

incident radiation is reduced from λ1 to λ2.

The work function of metal is​

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.