Work done by STATIC FRICTION is always

A) along the surface.
B) perpendicular to the surface.
C) positive.
D) negative.
E) zero.


E

Physics & Space Science

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A satellite in an elliptical orbit travels at a

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The major chemical component of the air we breathe today was deposited on Earth primarily via

a. volcanic eruptions. b. cometary impacts. c. asteroid impacts. d. chemical reactions in Earth's oceans.

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The equation of continuity applied to an incompressible ideal fluid flowing through a pipe of varying diameter is based on what of the following being conserved for the fluid in the pipe?

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