Ahand-driven tire pump has a 2.50 cm diameter piston and a maximum stroke of 31.0 cm.
(a) how much work (j) do you do in one stroke if the average gauge pressure is 2.40 multiplied by 105 n/m2 (about 35 psi)? (you may consider this an isothermal process.)
(b) what average force(n) do you exert on the piston, neglecting friction and gravity?
give me the steps.

and 1and 1

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