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Fudgin [204]
2 years ago
12

Tanks of compressed gas must be kept away from heat sources. If a compressed–gas tank is heated too much, it may explode and cau

se a great deal of damage. Which of the following best explains why a compressed–gas tank can explode if it is heated?
A. As the gas gets hotter, the molecules gain energy and move farther apart, causing the gas to expand.
B.As the gas gets hotter, the molecules expand, causing the gas to exert more pressure.
C.As the gas absorbs heat, the molecules break apart, increasing the volume of the gas.
D.As the gas absorbs heat, the molecules move more quickly, making the gas more corrosive.

Physics
2 answers:
Degger [83]2 years ago
5 0

Answer:

A. As the gas gets hotter, the molecules gain energy and move farther apart, causing the gas to expand.

Explanation:

I just took the test and got the question right

Proof is in the image:

notka56 [123]2 years ago
4 0

The answer to this question is A. As the gas gets hotter, the molecules gain energy and move farther apart, causing the gas to expand. This is because, whenever you heat a substance, (solid, liquid, or gas), the molecules in the substance will always move more rapidly causing the substance to expand and the molecules to move further away from one another.

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Answer: C) Label 1: X

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Explanation: Conductors are those substances which conduct electrical current easily because of the presence of free electrons whereas Insulators do not conduct electrical current as they do not contain free electrons. Some common  examples of conductors are copper, aluminum, gold, and silver. Some common examples of insulators are glass, air, plastic, rubber, and wood.

Label 1: Lacks free electrons  must be placed in the area marked X as they correspond to insulators.

Label 2: Aluminum is an example of conductor and thus must be labelled in area marked by Z.

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3 years ago
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Lelu [443]

Answer:

B

Explanation:

Given that an elevator moving down passes its neighbor, an elevator moving up. Their speed relative to one another is 8 m/s. What is the velocity of each elevator relative to someone standing on the first floor? Assume that the elevators are traveling at the same speed, and that the upward direction is

positive.

Solution

Given that upward direction is positive, then, the downward direction will be negative.

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Which is option B

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4 + 4 = 8.

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it is A hope it is useful.

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