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mote1985 [20]
3 years ago
9

9. If you leave a paperclip stuck to a magnet long enough, the paperclip can become magnetic. Explain how this happens. Include

discussion of the “tiny magnet” property of atoms and domains.
Physics
1 answer:
Virty [35]3 years ago
4 0

Answer:

Each atom acts as a tiny magnet, when the magnetic field of each of the tiny magnets are aligned together, it gives a north pole and south pole. This is brought about due to prolonged exposure to a permanent magnet, which has caused the alignment of the atoms' individual magnetic fields to attain polarity. If the paperclip is made of iron, it can be magnetized and demagnetized easily. Once the paperclip is removed from the magnet, it will lose its magnetic properties.

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The answer is as the slope of the line
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4 years ago
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The chart shows the power ratings of 3 clothes dryers and the time needed to dry a load of 10 towels.
atroni [7]

Answer:

12010

Explanation:

Given:

power    time

4,370     25

4,420     22

4,150      26

To find: difference in energy used between the dryer that uses the greatest amount of energy and the dryer that uses the least amount

Solution:

Energy = power × time

For clothes dryer x:

energy = 4370 × 25 = 109250

For clothes dryer y:

energy = 4420 × 22 = 97240

For clothes dryer z:

energy = 4150 × 26 = 107900

Dryer x uses the greatest amount of energy and dryer y uses the least amount of energy.

Difference in energy used between the dryer that uses the greatest amount of energy and the dryer that uses the least amount = 109250 - 97240 = 12010

6 0
3 years ago
________ is possible given our increased use of fertilizers and technology for agriculture
Vera_Pavlovna [14]

Explanation:

Farmers ' overuse of fertilizers and pesticides to improve crop yields is harmful to the environment and people's health. The use of fertilizers and pesticides has contributed to climate, water, and soil pollution problems. The nitrous oxide (N2O) formed by microbial activity on inorganic soil fertilizers allows ozone layer layer to deplete, and serves as a barrier against damaging UV rays emanating from the light.

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Which factor affects the force of gravity between objects? Check all that apply. A.direction
Leviafan [203]

The gravitational force between two masses is given by the formula

F=G\dfrac{Mm}{r^2}

where G is the <em>gravitational constant, </em>M is the larger mass, m is the smaller mass, and r is the distance between the centers of the objects. The values we can change here to affect that gravitational force are the <em>mass </em>and the <em>distance</em>. Time and shape have no impact on this force.

3 0
4 years ago
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A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the gasoline and has a refractive i
mrs_skeptik [129]

Answer:

Refractive index of film = 1.27

Explanation:

for the constructive interference of reflected light we know that the condition is given as

2\mu t = N\lambda

here we know

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6 0
4 years ago
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