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  1. 排列方式

  1. (i) COP = 50 000/W where W is the power input into the heat pump hence, 3.5 = 50 000/W i.e. W = 50000/3.5 kJ/h = 14 286 kJ/h (ii) Rate of heat extracted ...

  2. For Machine A, the number of defective article is X ~ B(100, 0.2). E(X) = 100(0.2) = 20 Var(X) = 100(0.2)(0.8) = 16 Also note that Var(X) = E{[X - ...

    分類:科學及數學 > 數學 2015年05月02日

  3. ...0.3968^2/(2 x 9.81) m = 4 m 2015-04-30 16:13:35 補充: Power to maintain flow as follows: (i) Pressure loss = 0.0738 x 1000 x 9.81 Pa...

  4. Thermal resistance of glass = 0.003 x 2/0.78 m^2.K/W = 0.007692 Thermal resistance of stagnant air = 0.01/0.026 m^2.K/W = 0.3846 m^2.K/W Hence, total ...

  5. ...software that should rely on the access to the network. Discuss the importance of maintaining a reliable Internet

  6. 1. tan∠BAC = 2 and tan∠EBF= 2 ∠BAC = ∠EBF CA // BF (alt. ∠s equal) CA is a vertically line. CA² = AB² +BC² (Pythagorean theorem) CA² = 2² + 1² m² CA = √5 m...

    分類:科學及數學 > 數學 2015年04月18日

  7. ...補充: 10) Yes. - Growth in demand requires airport expansion - Maintain competitiveness of the airport and HK - Damage to the environment CAN...

    分類:環境 > 其他 - 環境 2015年04月11日

  8. 1. We always talking about the distance between point P and a line segment XY is the shortest distance between them. So, the blue line and the green line ...

    分類:科學及數學 > 數學 2015年04月03日

  9. ... (v) = 保持, (但有留住含意), retain = keep 其他意思 ~ 聘請, 記得 Maintain (v) = 保持, (可能有維修含意), 其他意思 ~ 主張, 供養 He retains...

    分類:社會及文化 > 語言 2015年03月26日

  10. ... is based on a series of systematic control, its result will maintain the life style system, safe food, better nutrition, animal welfare and social ...

    分類:社會及文化 > 語言 2015年03月20日