Which activity performed by a chemist is primarily based on an understanding of physics? a) predicting the properties of an element based on its placement on the periodic table b) writing noble gas configurations for an element c) predicting the boiling point of a liquid, given its pressure d) predicting the acidic or basic nature of a substance based on its ph

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j