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worty [1.4K]
3 years ago
7

True or false: When an object becomes polarized, it acquires a charge and becomes a charged object.​

Physics
1 answer:
PSYCHO15rus [73]3 years ago
8 0

Answer:

i think its true

Explanation:

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Magnetic field lines exit out of the . Magnetic field lines enter into the . Magnetic field lines travel around a bar magnet in
Airida [17]

Answer:

Magnetic field lines exit out of the North pole . Magnetic field lines enter into the South pole. Magnetic field lines travel around a bar magnet in closed loops.

Explanation:

Magnetic field lines shows the direction of a magnetic force and how it acts, it gives the direction of the magnetic field at that point in time.

For a bar magnetic, the magnetic field lines runs from the north pole to the south pole, i.e. it exits the north pole and enters into the south pole. This magnetic field lines also go through the magnet forming closed loops without ends.

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4 years ago
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An electromagnetic wave in a vacuum has a wavelength of 0.032 m. What is its frequency?
Sergio [31]
L=wavelength
L=0.032
c=Lf
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3 years ago
If a plane has an airspeed of 40 m/s and is experiencing a crosswind of 30 m/s, what is its ground speed in m/s?
Anon25 [30]
<h2>Answer:50ms^{-1}</h2>

Explanation:

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Let v_{w} be the cross wind speed.

We know that,ground speed is the vector sum of airspeed and cross wind speed and airspeed is perpendicular to cross wind speed.

If v_{1} and v_{2} are two perpendicular vectors,the resultant vector has the magnitude \sqrt{|v|_{1}^{2}+|v|_{2}^{2}}

Given,

v_{a}=40ms^{-1}\\v_{c}=30ms^{-1}

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Which of the following can be caused by lightning or arson?
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100 points right here first comr first serve. amos thejonah2016.
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Thank you very much!!!

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