Multiple Choice
You charge a balloon by rubbing it on your hair and it sticks to the ceiling by electrostatic force. Which of these four free body diagrams describes all the forces acting on the balloon? The forces are labelled as follow: 
is the weight of the balloon, 
is electrostatic force, and 
is a normal force. 
A) choice a
B) choice b
C) choice c
D) choice d
Correct Answer:
Verified
Correct Answer:
Verified
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