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pogonyaev
3 years ago
9

From what characteristic do vertebrates get their name

Physics
1 answer:
viva [34]3 years ago
6 0
 The organisms in which  notochord (backbone) is present are called vertebrates
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I have a special thermos that has a vacuum chamber between my hot soup and its outside wall. Because my soup is isolated from it
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Answer:

C. My soup will cool down because of radiation.

Explanation:

Since, there is vacuum between hot soup and its outside wall, then heat can not flow through conduction and convection.

The heat then only flows through radiation.

Therefore, the soup will not cool down because of convection or conduction by because of radiation.

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Scientist have been able to determine the composition of Earth's layers by:
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D is the correct answer
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A microscope that uses light and more than one lens
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3 years ago
Planet A has a mass of 2.25 x 1020 kg, while planet B has a
denis23 [38]

The gravitational attraction between two planets is  4905.95 N

<h3>What is gravitational attraction?</h3>

When two objects with masses are placed at a distance, there will an attractive force acting between them.

According to the Newton's law of gravitation, gravitational force is

F = Gm₁m₂ /r²

where r is the distance between the masses m₁ and m₂ and  G is the gravitational constant G = 6.67 x 10⁻¹¹ N-m²/kg²

Substitute the values into the expression, we get

F =  6.67 x 10⁻¹¹ x  2.25 x 10²⁰ x 6.20 x 10¹⁸ / (435,500 x 1000)²

F= 4905.95 N

Thus, the gravitational attraction between two planets is  4905.95 N.

Learn more about gravitational attraction.

brainly.com/question/19822389

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2 years ago
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