assume now that the diameter of the piston is reduced by a factor of 2. what is the amount of work w2d done by a gas of pressure p0 in expanding from the same initial volume v0 to the same final volume v1 ? note that the piston has to start out much farther to the right for the volume to be v0 initially. express your answer in terms of p0 , v0 , v1 , and simple numerical factors.
