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1. ### Fluid mechanics

Area of circular gate = pi.(1.2/2)^2 m^2 = 1.131 m^2 Force acting on the gate due to air on the right = (30x10^3) x 1.131 N = 33 930 N Let H be the ...

2. ### Fluid mechanics

(1) Area of gate = 2 x 1.5 m^2 = 3 m^2 Depth of centroid of gate from water surface = (3 + (1.5/2)sin(25)) m = 3.317 m Pressure at centroid = 1000 x 9.81 ...

3. ### Fluid mechanics

Angle between AB and the horizontal = arc-tan(1.5/2) degrees = 36.87 degrees Lenth of AB = square-root[1.5^2 + 2^2] m = 2.5 m The centroid of AB is at its ...

4. ### Fluid mechanics

Distance of centroid of semi-circle from bounding diameter = 2 x 2/3.pi m = 0.4244 m Distance of upper semi-circle centroid from top of tank = (1 - 0.4244) ...

5. ### Fluid mechanics

Force due to water acting on the gate = 1000 x 9.81 x (h/2) x (1.25 x h/sin(75)) = 6348h^2 where 1000 kg/m^2 is the density of water 9.81 m/s^2 is the ...

6. ### Fluid mechanics

Dept of A below surafce of water at the left hand side of the gate = (4 - 2.sin(60)) m = 2.268 m Upward thrust acting on the gate by the water to its left ...

7. ### 求中文翻譯英文

... various positions posted by the recruitment department, for example, Mechanic and Electrician of the Engineering Department and ...

分類：社會及文化 > 語言 2014年06月09日

8. ### 英文地理 Q5 :(... "地理王" 幫幫忙..跪地lol

機械性風化(mechanical weathering)或稱物理風化(physical weathering) 岩石因為...中英文關鍵字 中文關鍵字：機械性風化、物理風化 英文關鍵字：mechanical weath ...

分類：科學及數學 > 地理學 2014年05月26日

9. ### 關於宇宙的英文作文!!!急!!!20點!!!

...educational institution at the highest level where I shall study for a degree at the mechanic engineering where a part in a machine at the point where ...

分類：社會及文化 > 語言 2014年05月21日

10. ### F4physics mechanics.challening

1. Use: impulse = change of momentum For car A: F.t = mv ----------- (1) For car B: F.t' = (2m).(3v) where t' is the time needed to stop car B ...