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scZoUnD [109]
3 years ago
15

What is Electromagnet? What is Voltage?

Physics
1 answer:
vampirchik [111]3 years ago
8 0

Answer: a core of magnetic material

Explanation:

A core of magnetic material surrounded by a coil of write through which an electric current is passed to magnetize the core

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The chimney of an oil lamp cracks when touched with rhe brade of cold knife?why<br>​
Bezzdna [24]

Answer:

The extreme difference between the hot chimney and the cold knife makes the chimney expand and contract so quickly it cracks.

Explanation:

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andrew11 [14]

Answer:

Oxygen cycle

Explanation:

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Convex.

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3 0
3 years ago
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What is the mass, in grams, of a pure iron cube that has a volume of 3.70cm cubed?
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mass = 3.70 (7.9) = 29.23 g Fe

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7 0
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