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Yuri [45]
2 years ago
7

Plzzzz help me this is due today. only need help with these two questions and the element is oxygen.

Physics
1 answer:
Tresset [83]2 years ago
3 0

Answer: thanks for the point

Explanation:

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What that means is the atom is so radioactive that the nucleus is unstable.

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Need help ASAP <br> Thankss + BRAINLIST only for correct answer
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An astronaut lands on a new, recently discovered planet in a different star system. The astronaut measures the acceleration due
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Answer:

The radius of the new planet is ~2.04 * 10⁶ m, or 2,041,752 m.

Explanation:

We can use Newton's Law of Universal Gravitation:

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Let's look at Newton's 2nd Law:

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We can set these equations equal to each other:

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The mass of the second mass (astronaut) cancels out. We are left with:

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We are solving for the radius of the new planet, so we can rearrange the equation:

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Substitute in our known values given in the problem (<u><em>G = 6.67 * 10⁻¹¹ </em></u><em> ; </em><u><em>M = 7.5 * 10²³</em></u><em> ; </em><u><em>a = 12</em></u>).

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The radius of the new planet is ~2.04 * 10⁶ m.

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2 years ago
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Kinetic energy is to calculated by KE= mass×velocity²/2 as a fraction.

Potential energy is to calculated by PE= mass×g×height.

And the another picture it has a <span>energy, kinetic energy, mechanical energy, conservation of energy.

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Answer:

it have two answers a and c

Explanation:

please mark me as brainlyst

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