1. Which one of the following are the correct SI units for angularmomentum? a.kg

Question

1. Which one of the following are the correct SI units for angularmomentum?

a.kg.m2/s
b.kg.m/s2
c. kg.m/s

2. Both liquids and gases are fluids. Which one of thefollowing statements is correct regarding a differencebetween liquids and gases?

a. The molecules in a liquid aregenerally farther apart than the molecules in agas.
b. Liquids generally have adefinite volume, gases do not.
c. Molecules in a liquidexperience much weaker intermolecular forces than do the moleculesin a gas.

3. Consider a static fluid. Let P be the pressure of thefluid, let A be the area of a small surface of the fluid'scontainer, and let F be the force of the fluid on the areaA. Which one of the following statements is correct?

a. F = PA and the forceis directed parallel to the surface.
b. F = PA and the force is directedperpendicular to the surface.
c. F =P/A and the force is directed perpendicular to thesurface.

Explanation / Answer

1 ) a is correct 2) b is correct 3)a is correct

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