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Minchanka [31]
1 year ago
9

Which of the following would increase​

Physics
2 answers:
bazaltina [42]1 year ago
7 0

Answer:

1 and 3

Explanation:

<u>1 and 3  </u>

Increasing coils increases strength

   COOLING the wire would increase current flow and strength of magnet

Adding an iron core will definitely increase the strength of the electromagnet

Svetradugi [14.3K]1 year ago
7 0

(1) Increasing the number of coils (✔)

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he atomic radii of Li and O2- ions are 0.068 and 0.140 nm, respectively. (a) Calculate the force of attraction in newtons betwee
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Answer:

a

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F =  \frac{k *  [Q_{Li}  ] * [Q_{O}  ]  }{ r^2}

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substituting -2 for Q_{O} i.e the charge on oxygen , +1 for Q_{Li} i.e the charge on Lithium and [0.140 + 0.068 ] nm= 0.208 nm =  0.208*10^{-9} for r

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F =  \frac{ 2.31  *  10^ {-28}*  +1   * -2   }{ ( 0.208*10^{-9} )^2   }

F =  -1.07 *10^{-8} \  N

Generally the force of repulsion will be the magnitude but different direction to the force o attraction

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6 0
3 years ago
A wave can be best defined as <br><br> P.S pls help
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Find the mass of a 52.2N bucket.​
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So, the mass of the bucket is 5.22 kg.

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