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Pls,how can i retrive my poly ibadan cbt pin? **Weegy:** The best thing to do is to contact the school administrator or visit there official website at (More)

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Asked 6/18/2012 1:54:46 AM

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Mathematics questions and answers for Neco 2012 **Weegy:** Below is a possible Mathematics question which you may com across.
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(1a)Using ruler and a pair of compasses only,construct a [ quadrilateral PXYQ such that/ PX/ =9.9cm,/ QX/=10.2cm, (More)

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Asked 6/18/2012 2:52:39 AM

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What are the development of primary education from 1944-2013 **Weegy:** Education is a powerful driver of development and one of the strongest instruments for reducing poverty and improving health, gender equality, peace, and stability. [ ] (More)

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Asked 6/19/2012 2:16:23 AM

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State hooke's law **Weegy:** Hooke's law of elasticity is an approximation that states that the extension of a spring is in direct proportion with the load applied to it. Many materials obey this law as long as the load does not exceed the material's elastic limit. [ Materials for which Hooke's law is a useful approximation are known as linear-elastic or "Hookean" materials. Hooke's law in simple terms says that strain is directly proportional to stress.
Mathematically, Hooke's law states that
where
x is the displacement of the spring's end from its equilibrium position (a distance, in SI units: meters);
F is the restoring force exerted by the spring on that end (in SI units: N or kg·m/s2); and
k is a constant called the rate or spring constant (in SI units: N/m or kg/s2).
When this holds, the behavior is said to be linear. If shown on a graph, the line should show a direct variation. There is a negative sign on the right hand side of the equation because the restoring force always acts in the opposite direction of the displacement (for example, when a spring is stretched to the left, it pulls back to the right).
Hooke's law is named after the 17th century British physicist Robert Hooke. He first stated this law in 1660 as a Latin anagram,[3][4] whose solution he published in 1678 as Ut tensio, sic vis, meaning, "As the extension, so the force". ] (More)

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Asked 6/19/2012 8:41:00 AM

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ocea,sea,pond,lake,river,stream.are classified under what? **Weegy:** oceaN,sea,pond,lake,river,stream.are classified under WATER ECOSYSTEM (More)

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Asked 6/19/2012 12:13:58 AM

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