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1. |
When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be$? |
A. | ω²r. (n + 1)/n |
B. | ω²r. (n - 1)/n |
C. | ω²r. n/(n + 1) |
D. | ω²r. n/(n - 1) |
Answer» B. ≈ì√¢¬¨‚â§r. (n - 1)/n | |