Ablock of wood 3 cm on each side has a mass of 27 g. what is the density of the block? (hint,
don't forget to find the volume of the wood.)

c. magnitude and direction

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

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