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3 years ago

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Hiker A has a body mass of 60 kg and carries a 10-kg pack. Hiker B has a body mass of 70 kg and carries a 20-kg pack. At the top

of the mountain they’re climbing, which hiker has the most gravitational potential energy?

2 answers:

aliya0001 [1]3 years ago

5 0

Hiker B has the most gravitational potential.

inysia [295]3 years ago

3 0

Hiker B has the most gravitational potential

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1. In general, the nucleus of a small atom is stable. Therefore, over very short distances, such as those in a small nucleus,

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<h3>1. <u>Answer;</u></h3>

a. the strong nuclear force is much greater than the electric force.

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<h3>9.<u> Answer;</u></h3>

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A sample of gaseous neon atoms at atmospheric pressure and 0 °c contains 2.69 * 1022 atoms per liter. the atomic radius of neon

omeli [17]

Explanation

Radius of neon atom : 69 pm = $69\times 10^{-12} m$

Volume occupied by the one atom: $\frac{4}{3}\pi r^3$

$=\frac{4}{3}\times 3.14\times(69\times 10^{-12} m)^3=1.37\times 10^{-30} m^3$

given that $2.69\times 10^{22}$ atoms are present in 1L

1 L = 0.001 $m^3$

The volume occupied by the $2.69\times 10^{22}$ neon atoms

$2.69\times 10^{22}\times 1.37\times 10^{-30} m^3=3.68\times 10^{-8} m^3$

Fraction of volume occupied by the neon atom:

$=\frac{3.68\times 10^{-8} m^3}{0.001 m^3}=3.68\times 10^{-11} m^3$

$3.68\times 10^{-11} m^3$

The fraction of of volume occupied by the neon atom is very less than the 1 L which indicates the presence of large amount of empty space between the atoms of the gas.

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3 years ago