A 5.00 mL syringe has an inner diameter of 5.00 mm, a needle inner diameter of 0.260 mm, and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. ▼ What is the minimum force the nurse needs to apply to the syringe? Express your answer with the appropriate units. ► View Available Hint(s) 0.262 N Submit Correct Part B Previous Answers The nurse empties the syringe in 4.80 s. What is the flow speed of the medicine through the needle Express your answer with the appropriate units. ► View Available Hint(s) Value Submit μA Units Request Answer ?

I need help with part b. I think I have the answer but I'd like to double check part a and b.

How would i do part A? and what is it asking?

I've been trying to figure out the last three steps for an hour now, but I can't seem to figure out the correct answers.