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rjkz [21]
3 years ago
8

Explain what happens when a ferromagnetic material is made into a permanent magnet.

Physics
1 answer:
erik [133]3 years ago
6 0
Not only do ferromagnetic materials respond strongly to magnets (the way iron is attracted to magnets), they can also be magnetized themselves—that is, they can be induced to become magnetic or made into permanent magnets. ... In an unmagnetized ferromagnetic object, domains are small and randomly oriented.
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The velocity of a 150 kg cart changes from 6.0 m/s to 14.0 m/s. What is the magnitude of the impulse that acted on it?
aleksandrvk [35]
M = 150 kg.

Final velocity, v = 14 m/s

Initial Velocity, u = 6 m/s

Impulse =  m(v - u)
 
             = 150*(14 - 6)
           
             =  150*8 = 1200 kgm/s  or 1200 Ns 
8 0
3 years ago
Read 2 more answers
Consider a disk of radius 2.6 cm with a uni- formly distributed charge of +6.7.1C. Compute the magnitude of the electric field a
MrRissso [65]

Answer:

E=15.3*10¹³ N/C  : approximate

Explanation:

We use the following formula to calculate the electric field due to a disk with uniform surface charge at a point P that is along the central perpendicular axis of the disk and at a distance x from the center of the disk:

E= 2*π*k*σ*F  Fórmula ( 1 )

F= 1-\frac{x}{\sqrt{R^{2}+x^{2}  } }

E: Electric field at point P (N/C)

σ: surface charge density (C/m²)

R: disk radio (m)

x :distance from the center of the disk to the point P located on the axis of the disk (m)

K: Coulomb constant ( N*m²/C)

Equivalences

1cm = 10⁻²m

1mm = 10⁻³m

Data

R =2.6 cm= 2.6*10⁻²m = 0.026m

x=3.7 mm = 3.7* 10⁻³m = 0,0037 m

Q=+6.71C.

k= 8.98774 * 10⁹ N* m²/C

Calculation of surface charge density (σ )

σ= Q/A

Q:  uniformly distributed charge (C)

A: disk area (m²) = π*R²

σ= +6.71C/π*(2.6*10⁻²)²m² = 3159.56C/m²

Calculation of the electric field at point P

We apply formula (1) and replace data

E= 2*π*3159.56*8.98774*10⁹ *F

F= 1-\frac{x}{\sqrt{R^{2}+x^{2}  } }

E=15.3*10¹³ N/C  : approximate

3 0
3 years ago
Which particle have a mass of 1 u​
Yuri [45]

Answer:

Explanation:

proton

4 0
3 years ago
Newton discovered that sunlight was composed of colors.<br><br><br> True or False
KonstantinChe [14]

Answer:

True

Newton's Rainbow. In the 1660s, English physicist and mathematician Isaac Newton began a series of experiments with sunlight and prisms. He demonstrated that clear white light was composed of seven visible colors.

Explanation:

Hope it helps

5 0
3 years ago
Which type of electronic community allows real-time discussion among members?
Brilliant_brown [7]

Instant messaging is the type of electronic community that allows real-time discussion among members.

 

Instant messaging<span> <span>(IM) is a type of online chat which offers real-time text transmission over the Internet. A LAN </span></span>messenger<span> <span>operates in a similar way over a local area network. </span></span>

 

I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

4 0
3 years ago
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