Find the number of teeth for gear D in each gear train.
1.

2.

3.

4.

5.

6. Find the direction of rotation of gear B if gear A is turned counterclockwise in Problems 22 through 28.
7. Find the effect of doubling the number of teeth on gear A in Problem38.

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D: at 1500 rpm B 30 teeth C 15 teeth A 60 teeth at 1850 rpm A= 30 teeth at 780 rpm C-20 teeth D at 260 rpm B = 45 teeth A 45 teeth at 160 rpm B 30 teeth D: at 576 rpm C 48 teeth E 45 teeth D: at 1125 rpm C 10 teeth B 30 teeth A- 20 teeth at 250 rpm C= 45 teeth D: at 555 rpm A = 60 teeth at 370 rpm B = 48 teeth