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Sophie [7]
3 years ago
10

Four compasses are placed around a wire, as shown. What is the best conclusion that can be drawn?

Physics
2 answers:
Usimov [2.4K]3 years ago
5 0

The best conclusion that can be drawn is that D) A current does not flow in the wire

Sati [7]3 years ago
5 0

Answer: The correct answer is (D).

Explanation:

If the current is flowing in the wire then the compass shows the deflection due to the magnetic field around the current flowing wire.

In the given problem, four compasses are placed around a wire, as shown in the given figure. The compass is not showing any deflection. It means that there is no magnetic field around the wire. It can be concluded that the current is not flowing in the wire.

Therefore, the correct option is "A current does not flow in the wire".

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Answer:

balanced?

Explanation:

because if it wasn't moving that means they are pulling at a similar strength

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Which of the following is true in regard to a charged atom?
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I believe a charged Atom is an ion. And that a charged atom possess it's charge due to the different number of electrons that it possess. Unlike an uncharged atom or neutral atom, a charged atom may possess more or less than the number of electrons found in an uncharged atom.
3 0
3 years ago
write any two factors that affect the speed of sound in gaseous medium sound waves can't propagate in vaccum why ​
disa [49]

Explanation:

  1. effect of density in speed of sound.
  2. effect of direction of wind in speed of sound.

because there is no medium to travel sound in vacuum.

hope it helps.

7 0
3 years ago
Please please please help me
pogonyaev

Answer:

C) seems to be the correct one

Each alpha particle emitted decreases the mass of the nucleus by 4 and decreases the atomic number by 2.

Also, each beta particle will increase  the atomic number by 1.

So if C emits 5 alpha particles the atomic mass decreases by 20 and the atomic number decreases by 10. Then emission of 2 beta particles brings the atomic number up to minus 8.

So a total of 7 particles have been emitted and the number of alpha particles emitted exceeds the number of beta particles emitted.

3 0
3 years ago
The rotational kinetic energy term is often called the kinetic energy in the center of mass, while the translational kinetic ene
Nataliya [291]

Question in proper order

The rotational kinetic energy term is often called the <em>kinetic energy </em><em>in</em> the center of mass, while the translational kinetic energy term is called the <em>kinetic energy </em><em>of</em> the center of mass.

You found that the total kinetic energy is the sum of the kinetic energy in the center of mass plus the kinetic energy of the center of mass. A similar decomposition exists for angular and linear momentum. There are also related decompositions that work for systems of masses, not just rigid bodies like a dumbbell.  

It is important to understand the applicability of the formula  

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Which of the following conditions are necessary for the formula to be valid?

a. The velocity vector v  must be perpendicular to the axis of rotation

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Option c

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K_{total} = K_{rotational}+K_{translational}

The first two conditions are untrue, this is because, you can have rotation in any direction and translation in any direction of any collection of masses. Rotational and translational velocities of masses do not depend on each other

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