The shape of the tooth on a gear is called: A. Tooth form. B. ...

[craiczarry]

The shape of the tooth on a gear is called:
 
  A. Tooth form.
  B. Tooth angle.
  C. Tooth pitch.
  D. Tooth taper.

Question 2

Dry friction depends on the force that presses two forces together and on
  _________________ .
 
  A. the size of the surface area of the two surfaces
  B. the speed at which the two surfaces areas move past each other
  C. the type of materials of which the two surfaces are made
  D. All of the above

[steff9894]

Answer to Question 1

A

Answer to Question 2

D

[craiczarry]

Thanks for the timely response, appreciate it

[alexanderhamilton]

Gracias!