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    Harvard university
    Feb-1997 - Aug-2003

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Category > Physics Posted 08 May 2017 My Price 7.00

single force

A ________ is a single force acting on a object to produce the same net effect as all the collective forces acting on the object.

 

A.resultant force

B.force system

C.scale drawing

D.vector polygon

 

In a planetary geartrain with a form factor of 8, the sun gear rotates clockwise at 5 rad⁄s and the ring gear rotates clockwise at 12 rad⁄s. At what speed does the carrier gear rotate? A.12.9 rad⁄s clockwise

B.11.2 rad⁄s clockwise

C.5.8 rad⁄s clockwise

D.12.9 rad⁄s counterclockwise

E. 11.2 rad⁄s counterclockwise

 

The velocity ratio of a chain drive is 10. The diameter of the input sheave is 38 cm and it is rotating at a speed of 22 rad⁄s. Find the diameter of the output sheave and its angular velocity. A.380 cm, 2.2 rad⁄s

B.3.8 cm, 2.2 rad⁄s

C.3.8 cm, 220 rad⁄s

D.380 cm, 220 rad⁄s

 

For a constant diametral pitch, what effect does doubling the number of teeth have on the pitch radius? A.It will increase by a factor of four.

B.It will remain the same.

C.It will double.

D.It will be halved

 

 

B. False

Answers

SuperTutor
(15)
Status NEW Posted 08 May 2017 07:05 AM My Price 7.00

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