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Mice21 [21]
3 years ago
9

What’s the difference between the resistance of 1,000 feet of aluminum No. 14 wire and 1,000 feet of No. 14 copper wire? A. The

aluminum has 0.84 ohms more resistance. B. The aluminum has 2.66 ohms more resistance. C. The copper has 0.59 ohms more resistance. D. The aluminum has 1.99 ohms more resistance.
Physics
1 answer:
Lapatulllka [165]3 years ago
3 0

the answer is A. The aluminum has 0.84 ohms more resistance.

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the measure of each exterior angle of a regular pentagon is ___ the measure of each exterior angle of a regular nonagon
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Answer:

(a) 72°

(b) 40°

Explanation:

PENTAGON

First, we calculate the total angles in a Pentagon using:

180(n - 2)

Where n = number of sides of the polygon, in this case, 5.

Hence, the total angle in a polygon is

180(5 - 2) = 180 * 3 = 540°

Therefore, each angle will be:

540°/5 = 108°

Because the interior angle and exterior angle form a straight line (180°), the exterior angle of a regular pentagon will be:

180 - 108 = 72°

The exterior angle of a regular Pentagon is 72°

NONAGON

First, we calculate the total angles in a Nonagon using:

180(n - 2)

Where n = number of sides of the polygon, in this case, 9.

Hence, the total angle in a polygon is

180(9 - 2) = 180 * 7 = 1260°

Therefore, each angle will be:

1260°/9 = 140°

Because the interior angle and exterior angle form a straight line (180°), the exterior angle of a regular nonagon will be:

180 - 140 = 40°

The exterior angle of a regular Nonagon is 40°

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3 years ago
Which statement describes the atomic number?<br>​
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Answer:The term atomic number, conventionally denoted by the symbol Z, indicates number of protons present in the nucleus of an atom, which is also equal to the number of electrons in an uncharged atom. The number of neutrons is represented by the neutron number (N)

Explanation:

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The two types of motion exerted in bicycle are:
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Answer:

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Explanation:

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Explanation:

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