A $5\mathrm{.}0$ mLmL syringe has an inner diameter of $5\mathrm{.}0$ mmmm $,$ a needle inner diameter of $0\mathrm{.}22$ mmmm $,$ and a plunger pad diameter $($where you place your finger$)$ of $1\mathrm{.}2$ cmcm$.$ A nurse uses the syringe to inject medicine into a patient whose blood pressure is $140/100.$ Assume the liquid is an ideal fluid.

Part A

What is the minimum force the nurse needs to apply to the syringe?

Express your answer in newtons.

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FF $=$

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NN

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Part B

The nurse empties the syringe in $4\mathrm{.}5$ ss $.$ What is the flow speed of the medicine through the needle?