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1. ### 急問.......

1. A food chain is the flow of energy from one... is an example of a food chain : phytoplankton → copepod → fish → squid...real world, there are no simple food chains like this. Rabbits eat many...

2. ### F.5 Phy

Chain reaction means that after bombarding a neutron to a heavy isotope, more... of energy continuously. Fusion needs high temperature but not chain reaction. As nuclear fusion means to fuse two light isotopes(usually...

3. ### CHAIN RULE PROBLEM ~ 10 分

dy/dx if y = 2 (1 + cosx )^3 dy/dx = dy/du * du/dx &lt;--let u = (1+ cosx) = d(2u^3)/du * d(1+cosx)/dx = (2*3u^2) * (-sinx) = [6(1+cosx)^2] * (-sinx) = -6sinx(1+cosx)^2

4. ### A Physic Question.

At any time t after the chain is released, let x (it is a function of t) be the length of... ｏ ↓ Ｗ W depends on the length of the chain that is hanging. So, W = Mx/L * g, where...

5. ### Physics question （urgent）

(a) Linear density of chain p = 0.33/0.25 kg/m = 1.32 kg/m Since net force Fn equals...mass of chain being in the air and v is the speed of the lifting chain . thus, Fn = v(dm/dt) [ because v being constant ] But m = p...

6. ### phy力的問題

... the object is in equilibrium, upthrust = weight of object + tension in the chain but weight of object = 1000g N = 10,000 N (take g = 10 m/s2) and tension...

7. ### 鐵鍊可吊4噸加多1條可吊幾重

It depends how you connect the chains . If the two pieces of chains are hooked togetger...

8. ### 解下列力學問題

Since you didn&#39;t give any diagram, I presume that the two chains ans wire are in a letter Y shape configuration, with the two chains ...

9. ### 食物鏈的英文是甚麼??

Food chains , food webs or food networks

10. ### f.4 physics mechanics

...3)a a=0.7ms^-2 (b):T1 is the tension in the coupling chain between (wagon no.1) and (engine). T2 is the tension in the ...

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