Question 1:

A droplet has a mass of 2.2 x 10 "kg and a charge of +e. In what vertical electric field would the droplet be in equilibrium near the earth's surface? (Consider gravity in this problem.) jN/CA point charge -2 q is at c = 0 while a second charge is at @ = 1 m. Besides infinity, where is the field strength zero given that the second charge is: a) 12 q m b) -3q m1.602E-19 In fine weather there is a field of 100 N/C directed downwards (-j direction) near the surface of the Earth. a) What is the electrical force on a proton in such a field? iN b) What is the magnitude of the acceleration of the proton? m/$2