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Natali [406]
3 years ago
9

What are artificial magnets and natural magnets ? examples​

Physics
2 answers:
Stells [14]3 years ago
7 0
Example of artificial magnets: columbite,ferrite and pyrrhotite
examples of natural magnets:
magnetite or lodestone
nevsk [136]3 years ago
5 0

Answer:

The name is basically self explanatory.

Natural magnets are magnets that occurs naturally in nature. All natural magnets are permanent magnets, meaning they will never lose their magnetic power. lodestones is one example of a natural magnet.

Artificial magnets are basically man made magnets. They have extra-strong magnetic power. One example of artificial magnets are the magnets you stick at your refrigerator.

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Tony walks at an average speed of 70 m/min from his home to
aksik [14]

Answer:

The answer is 30 min

Explanation:

t = s/v

v = 70 m/min, s = 2100 m

t = 2100/70 = 30 min.

Hope it helps you! \(^ᴥ^)/

6 0
2 years ago
Five 6 ohm resistors are connected in parallel. Which of the following is their effective resistance?
Ganezh [65]

1/Rt = 1/R1 + 1/R2 + 1/R3+ 1/R4+ 1/R5

1/Rt = 1/6+ 1/6+1/6+1/6+1/6

1/Rt = 5/6

Rt = 6/5

Rt = 1.2 ohm

so B is the answer

3 0
3 years ago
The energy of an electromagnetic wave is related to
Sedbober [7]

Answer:

The energy carried by an electromagnetic wave is proportional to the frequency of the wave. The wavelength and frequency of the wave are connected via the speed of light: Electromagnetic waves are split into different categories based on their frequency (or, equivalently, on their wavelength).

Explanation:

6 0
3 years ago
A stone was dropped off a cliff and hit the ground with a speed of 88 ft/s . What is the height of the cliff? (Use 32 ft/s 2 for
bulgar [2K]

To solve this problem we will apply the linear motion kinematic equations, which describe the change in velocity, depending on the acceleration and the distance traveled, that is,

v_f^2 = v_i^2 +2ah

Where,

v_f= Final Velocity

v_i = Initial Velocity

a = Acceleration

h = height

Our values are given as,

v_f = 88 ft/s\\v_i = 0 ft /s\\a = 32 ft/s^2\\

Replacing we have,

vf^2 = vi^2 + 2*a*h

88^2 = 0 + 2*32*h

h= 121 ft

Therefore the height of the cliff is 121ft

5 0
3 years ago
3. A car does an emergency stop from 144 km\h in 4s<br> What was its deceleration?
strojnjashka [21]

Answer:

36?

Explanation:

5 0
2 years ago
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