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Dima020 [189]
2 years ago
6

A dancer lifts his partner above his head with an acceleration of 3 m/s². The dancer exerts a force of 175 newtons. What is the

mass of his partner?
Chemistry
1 answer:
irina [24]2 years ago
4 0

Answer:

58 1/3 kg

Explanation:

This case involves Newton's Second Law of Acceleration, where Force = Mass × Acceleration. We're given the acceleration as 3 and the force as 175, so we divide 175 by 3 to get the mass.

  • 175/3
  • 58 1/3

Therefore, the answer is 58 1/3 kg.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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Answer:

3:1

Explanation:

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Give the ground-state electron configuration for each of the following elements. After each atom is its atomic number in parenth
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Answer:

(a) ₁₉K: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

(b) ₁₀Ne: 1s² 2s² 2p⁶

---

(a) 3

(b) 6

(c) 7

Explanation:

We can state the ground-state electron configuration for each element following Aufbau's principle.

(a) ₁₉K: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

(b) ₁₀Ne: 1s² 2s² 2p⁶

Second part

(a) Al belongs to Group 13 in the Periodic Table. It has 13-10=3 electrons in the valence shell.

(b) O belongs to Group 16 in the Periodic Table. It has 16-10=6 electrons in the valence shell.

(c) F belongs to Group 17 in the Periodic Table. It has 17-10=7 electrons in the valence shell.

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3 years ago
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