A student places a block on a table and hangs one mass from the block. the student let's the block go and observes the block accelerate towards the end of the table where the mass was located. the student then places a block on the table and hangs on a second larger mass from the opposite end of the block, the block accelerates in opposite direction on the first trial. what does experiment demonstrate?

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

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.