Fluid Flow: Water flows out of a large reservoir through an open pipe, as shown in the figure. What is the speed of the water as it comes out of the pipe?
A. 8.9 m/s
B. 9.9 m/s
C. 13 m/s
D. 14 m/s
E. 16 m/s
Answer: C
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The figure shows the graph of 
versus time for an object moving along the x-axis. Solve graphically for the average acceleration between t = 5.0 s and t = 9.0 s.
A. 4.0 
B. 5.0
C. 0.5
D. 0.4
A 2.0-kg block slides on a rough horizontal surface. A force (magnitude P = 4.0 N) acting parallel to the surface is applied to the block. The magnitude of the block's acceleration is 1.2 m/s2. If P is increased to 5.0 N, determine the magnitude of the block's acceleration.
A. 2.1 m/s2 B. 2.3 m/s2 C. 1.9 m/s2 D. 1.7 m/s2 E. 3.2 m/s2
U-235 and Pu-239 are both
A) radioactive isotopes. B) fissionable isotopes. C) heavier than lead. D) all of the above E) none of the above
Which variable is increasing the fastest on the graph prepared in Procedure 2?