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ANSWERS TO QUESTIONS
Q1.1 Atomic clocks are based on electromagnetic waves which atoms emit.
Also, pulsars are highly regular astronomical clocks.
Q1.2 Density varies with temperature and pressure. It would be necessary
to measure both mass and volume very accurately in order to use the
densi
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water, as shown in Fig. 2.23. Assuming that the air stays at 70℉ and behaves as ideal gas, how high will the water rise in the can?
2.24.* In the hydraulic lift in Fig. 2.24. the total mass of car, rack, and piston 1800 kg. The piston has a cross-sectional area of 0.2 m^2. What is the pressure in
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higher continuous use temperature, low water adsorption etc.
Future application
◇ moduli similar to glass fiber reinforcement
◇ interphase adhesion and morphological control
◇ higher melting component의 supercooling characteristics
◇ fabricate articles
◇ window frame
→ The study of LCP/polymer blend
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Water Reactor )
②가압중수로( PHWR , Pressurized Heavy Water Reactor)
③비등경수로(BWR: Boiling Water Reactor)
④고온가스냉각로(HTGR:High Temperature Gas-cooled Reactor)
⑤흑연감속 비등수냉각 압력관형로 (RBMK)
-핵연료주기
2) 방사성폐기물과 그 처리 방
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high, but not laminar. Ans. With careful inlet design, low disturbances, and a very smooth wall, it might still be laminar, but No, this is transitional, not definitely laminar.
P6.2 Water ?ows through a 10-cm-diameter pipe at a rate of 10?4 m3/s. Evaluate the Reynolds number when the tempe
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to burner for 3 hours, combustor temperature reaches about 1000oC and CO is 77-103ppm at 1.55 excess air ratio and SOx and Cl are under 2ppm and 1ppm, respectively. This experiment demonstrate that purverized fuel made from food waste could be an alternative clean energy at the age of high oil price
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