Exhibit 15-1
A dictator has built a bunker for his use in emergencies. Its dimensions are shown below. When it floods to ground level during a tropical storm, air is trapped above the dashed line in the bunker.
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Use this exhibit to answer the following question(s).
Refer to Exhibit 15-1. The absolute pressure at point A, in Pa, is
A. 3.92 × 105.
B. 4.90 × 105.
C. 5.39 × 105.
D. 5.88 × 105.
E. 6.89 × 105.
Answer: E
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The adiabatic index of a gas is given by which of the following?
a. CP /CV b. CV /CP c. CP ? CV d. CP + CV
A 2-kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, and they stick together. After the collision, the velocity of the combined bodies is
a. 0. b. 0.8 m/s towards the right. c. 0.8 m/s towards the left. d. 2.4 m/s towards the right. e. 2.4 m/s towards the left.