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.

If the force on an object is in the negative direction, the work it does on the object must be [2 points a) negative. b) positive c) the work could be either positive or negative, depending on the direction the object moves

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

The process of a material going through a change of state from a gas to a liquid