Answered: 9. A child wants to pump up a bicycle… | bartleby

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9. A child wants to pump up a bicycle tire so that its pressure is 1.2 x 105 Pa above
that of atmospheric pressure. If the child uses a pump with a circular piston 0.035
m in diameter, what force must the child exert?
A) 120 N
B) 89 N
C) 76 N
Dj 64 N
E) 240 N

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