Unformatted text preview: PHYS 2c, w zoos QUIZ #1 Name Code MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) An ice who initially ﬂoats in a glass of oil. Later, it melts and the resultant water settles at the 1)
bottom of the glass. Assuming that oil and water do not mix, what happens to the ﬂuid level? A) Rises B] Falls
C) Stays the same D) Depends on oil density 2) Consider a pipe whose ﬁrst hall-length is filled with water and the other half with oil (density 03 2)
guns]. Both ﬂuids are incompressible, The water is made to flow with velocity 1 mfs at the front end which has the cross-sectional area of 1 mg. The exit cross-seclional area of the pipe is 0.5 m2.
What is the exit velocity of the oil? A) 2.5 infs B} 2 rrv's C) 1 mfs D] 1.25 mfs 3) In a bucket of water steadily rotated about its axis of symmetry, water level is known to form a dip 3)
at the center. Alice claims that this phenomenon can be explained using the Bernoulli equation plus
the fact that fluid velocity has the minimum at the rotation axis. Bob argues that the Bernoulli
equation is grossly violated. He invokes viscosity as a likely mason and proposes that for glycerin,
which is more viscous, one would see even bigger deviation from the Bernoulli equation for the ...
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- Spring '05