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notsponge [240]
3 years ago
5

Explain what happens to the domain in a bar magnet if:

Physics
1 answer:
JulijaS [17]3 years ago
4 0

Answer:

1)Each one reinforces the magnetic fields of the others. Each one has a tiny north and south pole. If you cut one in half, the newly cut faces will become the new north or south poles of the smaller pieces.

2)Permanent magnets can lose their magnetism if they are dropped or banged on enough to bump their domains out of alignment. ... The reason that would be hard to bump a piece of iron and make it magnetic is because of the way vibrations propagate in the material.

Explanation:

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What is the distance of separation between objects of masses 5.6 x 10 5 kg and 8.8 x 10 6 kg if the force of gravity between the
AlladinOne [14]

Answer:

2.87m

Explanation:

Using the law of gravitation to solve this question

F = GMm/r²

G is the gravitational constant

M and m are the masses

r is the distance between the masses

Substitute the given values

G = 6.67×10^-11 m³/kgs²

M =8.8 x 10^6 kg

m = 5.6 x 10^5 kg

F =440N

400 = 6.67×10^-11×8.8 x 10^6 ×5.6 x 10^5/r²

400r² = 328.698×10

400r² = 3286.98

r² = 3286.98/400

r² = 8.21745

r = √8.21745

r = 2.87m

Hence the distance of separation is 2.87m

7 0
3 years ago
An unknown substance from planet X has a density of 10 g/mL. It occupies a volume of 80 mL. What is the mass of this unknown sub
asambeis [7]

Answer:

800 mL

Explanation:

D*V=M

You pick out the numbers as well as what it is they represent from the word problem/explanation, then from there plug them in to the equations. Once you do that, you get your product and have the answer.

10*80= 800

5 0
3 years ago
I just need the answer to number 1 (with work please) <br> (Newton’s Second Law)
Valentin [98]

Answer:

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Explanation:

I been rereading this and I can't solve it lemme go ask people in ma house real quick

8 0
3 years ago
A track athlete jumps over a hurdle. What is the equal and opposite force for the force of the athlete pushing on the ground as
Jet001 [13]

Answer: Normal Force of the ground pushing the athlete up.

Explanation: I did this on Khan Academy and got the answer right.

6 0
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I need help one through five
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