A hot air balloon and its basket together weigh 300 N and it contains hot air weighing 17000 N. If the lift capacity of the balloon is 5000 N, What is the weight of the cold air displaced by the balloon and its basket?

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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