Question

1. Which of the following are VECTORS? Choose all thatapply.

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pressure __momentum density masspowerdisplacement

b.) Which of the following can be measured in CALORIES? Choose allthat apply.

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mass angularmomentum weight potentialenergy power __work

c.) For a submarine, identify when it will have the LEAST buoyantforce acting on it. Assume thatneither the volume of the submarinenor the density of the waterchange. Choose all thatapply.

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When it is empty and fully submerged ata depth of 50 m. When it isfullof cargo and floating on the surface. When it isin dry dock andno part of it is submerged in water.When it is empty and floatingon thesurface. When it is empty, fully submerged, andresting on thebottom at a depth of 100 m. When it isfull of cargo and fullysubmerged at a depth of 50 m.When it is full of cargo,fullysubmerged, and resting on the bottom at a depth of 100m.

d.) Which of the following statements are IMPOSSIBLE? Choose allthat apply.

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A perfectly functioning hydraulic had apressure of 33 psi in thefluid near the small piston and apressure of 19 psi in the fluidnear the big piston.A 32 L container displaced 44 L oforange juicewhen fully submerged. A substanceunderwent melting during which itstemperature changed 74°F. A 37 lb brick was fully submergedinwater. The buoyant force on the brick was 41 lb. As adirectresult, the brick was neutrally buoyant. Last Sunday,the Sunheated the Moon via convection. Thetemperature inside a vacuumchamber was measured to be 13°C.