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Ksju [112]
3 years ago
13

Which of the following is a force that can oppose or change motion?

Physics
2 answers:
sergey [27]3 years ago
8 0

Answer:

Friction force is the force that one object exerts in another when the two rub against each other. Most of the time, friction force opposes the motion of an object.

Explanation:

Paraphin [41]3 years ago
5 0
I believe that it is friction because when you get a lot of friction between a door and the latch it stops.
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Explain the difference between a government Law and a Law of Science
yanalaym [24]

Answer:

U.S. Federal Government Law addresses government interactions on a national scale, and is largely composed of administrative law and constitutional law. ... State law also establishes and regulates local government for cities, towns, counties, and other communities.In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory

Explanation:

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When are the days in the northern hemisphere the shortest?
kolezko [41]
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Do all objects fall at the same rate?and if they do not why?
Tema [17]
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6 0
3 years ago
Outside the Solar System is there any gravitational pull from the Sun?
babunello [35]

Answer:

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3 years ago
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An electron in a TV picture tube is accelerated through a potential difference of 10 kV before it hits the screen. What is the k
laiz [17]

Answer:

10,000 eV

Explanation:

According to the law of conservation of energy, the kinetic energy gained by the electron is equal to its change in electric potential energy:

K=\Delta U=q \Delta V

where:

K is the kinetic energy of the electron

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\Delta V is the potential difference through which the electron has been accelerated

For this electron in the TV, we have

\Delta V=10 kV=10000 V

Therefore, the kinetic energy of the electron in electronvolts is

K=(1 e)(10000 V)=10000 eV

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