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Lina20 [59]
3 years ago
7

Which best describes the act of using senses or tools to gather information

Physics
2 answers:
Furkat [3]3 years ago
7 0

Answer: It is called an observation

Explanation: When we have a phenomenal and we want to gather information about it, we need to "observe" it.

This may be done by using our senses, like looking, smelling, touching, or a more modern approach, using tools, like spectrometers, velocimeter, or the needed tool.

A given feature of a phenomenon that can be measured is called an "observable", and the act of measuring this "observable" is called an "observation"

Delicious77 [7]3 years ago
3 0

Answer:

The act of using senses or tools to gather information is called <em>Obser</em><em>vation</em><em>.</em>

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Answer:

50 V

Explanation:

The formula electric potential is given as,

V = kq/r............. Equation 1

q = Vr/k ................. Equation 2

Where q = charge at that point, V = Electric potential, k = coulombs constant, r = distant.

Given: V = 100 V, r = 2.0 m, k = 9.0×10⁹ Nm/C².

Substitute into equation 1

q = (100×2)/(9.0×10⁹ )

q = (200/9)(10⁹)

q = 22.22×10⁻⁹

q = 2.22×10⁻⁸ C.

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Given: r = 4.0 m, q = 2.22×10⁻⁸ C, k = 9.0×10⁹ Nm²/C²

Substitute into equation 2

V = 9.0×10⁹(2.22×10⁻⁸)/4

V = 49.95 V

V ≈ 50 V

Hence the potential = 50 V

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