3 years ago

Select the correct answer.

Physics

1 answer:

Dovator [93]3 years ago

3 0

Answer:

D. Mars is a long distance away

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

$F_r = 1.07 *10^{-8} \ N$

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Generally the force of attraction between this two irons is mathematically represented as

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Here k is known as the proportionality constant with value $k = 2.31 * 10^ {-28} J \cdot m$

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

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

So Force of repulsionn is

$F_r = 1.07 *10^{-8} \ N$

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