Answered: T=rxF 7| = 3.5 N-m T=rxF I기 %3D2.6 N-m…

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter22: Minerals, Rocks, And Volcanoes

Section22.1: Minerals

Problem 2PQ: Without trying it, how would you know that a diamond will scratch glass?

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Tightening a bolt A force of 20 N is applied to a wrench attached to a bolt in a direction perpendicular to the bolt as shown. Which produces more torque: applying the force at an angle of 60° on a wrench that is 0.15 m long or applying the force at an angle of 135° on a wrench that is 0.25 m long? In each case, what is the direction of the torque?

T=rxF
7| = 3.5 N-m
T=rxF
I기 %3D2.6 N-m
F
F = 20 N
|r| = 0.25 m
|r| = 0.15 m
F| = 20 N
θ3D 135°
F
θ3D 60°
(a)
(b)
Figure 13.63

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