Daniell, Alfred, 1853-1937 · London : Macmillan · leaf 393
Fig.135. Where work is done both by and upon the working substance, as in Fig.134, the negative work ppvvp being subtracted from the positive workppvvp, there is left an area pppvv, which represents the work done. If the curve ppp be complicated, the total work done may be found bydissecting the…
Physics
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