When the sum of the external forces and the sum of the external torques on a body are both zero, we can conclude that
a. the body is moving at constant velocity but is not rotating.
b. the body is rotating at constant angular velocity but has no linear velocity.
c. the body has neither linear nor angular velocity.
d. the body may have constant linear or angular velocity, but not both simultaneously.
e. the body may have constant linear or constant angular velocity, or both simultaneously.
Question 2
Nearsighted people wear glasses with
lenses that are designed to
a) make the image larger.
b) improve the focus of the image.
c) make the image smaller.
d) make the image brighter.
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