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valentina_108 [34]
3 years ago
12

When a gas is compressed, the molecules are pushed closer together causing the gas to ______.

Physics
2 answers:
yan [13]3 years ago
6 0

Answer: Option (b) is the correct answer.

Explanation:

When gas is compressed then molecules of gas will come closer to each other. Though molecules already had kinetic energy and on compressing the molecules will collide more rapidly with each other.

As a result, energy will be released in the form of heat. Thus, there will be rise in temperature.

Hence, we can conclude that when a gas is compressed, the molecules are pushed closer together causing the gas to rise in temperature.

AfilCa [17]3 years ago
3 0
The answer is "rise in temperature". Think of when you're in a crowded place. When it's crowded it gets hot because of the energy radiating off of everyone around you.
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Which is an important step in how an electric motor uses magnetic force to produce motion?
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Answer:B.As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.

Explanation:

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A solenoid with 435 turns has a length of 7.50 cm and a cross-sectional area of 3.50 ✕ 10−9 m2. Find the solenoid's inductance a
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Answer:

Solenoid's inductance is 1.11 × 10^-8H

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The resistivity of gold is at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a current of 940 m
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Answer:

0.0360531138247 V/m

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\rho = Resistivity of gold = 2.44\times 10^{-8}\ \Omega .m (General value)

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\rho=\dfrac{EA}{I}\\\Rightarrow E=\dfrac{\rho I}{A}\\\Rightarrow E=\dfrac{2.44\times 10^{-8}\times 940\times 10^{-3}}{\dfrac{\pi}{4}(0.9\times 10^{-3})^2}\\\Rightarrow E=0.0360531138247\ V/m

The  electric field in the wire is 0.0360531138247 V/m

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lord [1]
When do you gotta turn it in?
8 0
2 years ago
A piece of tape is pulled from a spool and lowered toward a 120-mg scrap of paper. Only when the tape comes within 8.0 mm is the
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Answer:

1.176\times 10^{-3} N

Upward

Explanation:

We are given that

Mass of scarp paper,m=120 mg=120\times 10^{-6}kg

1mg=10^{-6} mkg

Distance,d =8 mm=8\times 10^{-3} m

Magnitude of electric force =F_E= w=mg

Where g=9.8 m/s^2

Substitute the values

F_E=120\times 10^{-6}\times 9.8

F_E=1.176\times 10^{-3} N

Gravitational force act in  downward direction.

The electric force acts in opposite direction and magnitude of electric force is equal to gravitational force.

Hence, the direction of electric force is upward.

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3 years ago
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