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

Physics & Space Science

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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

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Which variable is increasing the fastest on the graph prepared in Procedure 2?

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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

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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

Physics & Space Science