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Dmitry_Shevchenko [17]
4 years ago
9

The body’s defense against germs and diseases is called

Physics
1 answer:
sukhopar [10]4 years ago
7 0

<u>Answer</u>

Immune system


The body’s defense against germs and diseases is called the immune system. The immune system consists of network cells which work together to protect the body


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If you unbend a paper clip made from 1.5 millimeter diameter wire and push one end against the wall, what force must you apply t
vampirchik [111]

Answer:

The force is  F =  21.48 \ N

Explanation:

From the question we are told that

   The diameter of the wire is  d =  1.5 \  mm  =  1.5 *10^{-3} \ m

     The  pressure is  P   =  120 \ a.t.m  =  120  * 101.3 *10^{3} = 12156000 Pa

Generally the radius of the of the wire is  

     r =  \frac{d}{2}

=>    r =  \frac{ 1.5 *10^{-3}}{2}  

=>    r =  7.5 *10^{-4} \  m

The Area is evaluated as

     A =  \pi  r^2

=>    A =  3.142 * 7.5 *10^{-4}

=>    A = 1.7673*10^{-6} \  m^2

Generally pressure is mathematically represented as

     P  =  \frac{F}{A }

=>   F =  P* A

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=>    F =  21.48 \ N

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3 years ago
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