Question

A piece of an ideal fluid is marked as it moves along a horizontal streamline through a pipe, as shown in the figure. In Region II, the speed of the fluid on the streamline is $V$. The cylindrical, horizontal pipe narrows so that the radius of the pipe in Region II is half of what it was in Region I. 10. How do the relative pressures in the two regions compare? (A) $P_I > P_{II}$ (B) $P_I = P_{II}$ (C) $P_I < P_{II}$ (D) It cannot be determined. 11. What is the speed of the marked fluid when it was in Region I? (A) 4V (B) 2V (C) V (D) V/2 (E) V/4 12. The equation of motion of a simple harmonic oscillator is $frac{d^2x}{dt^2} = -4x$ where $x$ is position (in meter) and $t$ is time (in seconds). The period of oscillation (in seconds) is... (A) $pi$ (B) $frac{pi}{2}$ (C) $frac{1}{pi}$ (D) $frac{2}{pi}$ (E) 2

          A piece of an ideal fluid is marked as it moves along a horizontal streamline through a pipe, as shown in the figure. In Region II, the speed of the fluid on the streamline is $V$. The cylindrical, horizontal pipe narrows so that the radius of the pipe in Region II is half of what it was in Region I.
10. How do the relative pressures in the two regions compare?
(A) $P_I > P_{II}$ (B) $P_I = P_{II}$ (C) $P_I < P_{II}$ (D) It cannot be determined.
11. What is the speed of the marked fluid when it was in Region I?
(A) 4V (B) 2V (C) V (D) V/2 (E) V/4
12. The equation of motion of a simple harmonic oscillator is $frac{d^2x}{dt^2} = -4x$ where $x$ is position (in meter) and $t$ is time (in seconds). The period of oscillation (in seconds) is...
(A) $pi$ (B) $frac{pi}{2}$ (C) $frac{1}{pi}$ (D) $frac{2}{pi}$ (E) 2

$A piece of an ideal fluid is marked as it moves along a horizontal streamline through a pipe, as shown in the figure. In Region II, the speed of the fluid on the streamline is V. The cylindrical, horizontal pipe narrows so that the radius of the pipe in Region II is half of what it was in Region I. 10. How do the relative pressures in the two regions compare? (A) PI > PII (B) PI = PII (C) PI < PII (D) It cannot be determined. 11. What is the speed of the marked fluid when it was in Region I? (A) 4V (B) 2V (C) V (D) V/2 (E) V/4 12. The equation of motion of a simple harmonic oscillator is fracd^2xdt^2 = -4x where x is position (in meter) and t is time (in seconds). The period of oscillation (in seconds) is... (A) pi (B) fracpi2 (C) frac1pi (D) frac2pi (E) 2$

Added by Lisa L.

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