What initially unknown quantity, together with the wavelength, is sufficient to calculate the stopping potential for 400 nmnm light? View Available Hint(s) Hint 1. Equation for stopping potentialopened hint Recall that the equation for the stopping potential is eV0=hf−ϕeV0=hf−ϕ.

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.

Amperes. i got it right on edgenuity