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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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B. The Earth radiates an amount of energy into space equal to the amount it receives.

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What unit of measure would you use for mass?
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Coherent light of wavelength 540 nm passes through a pair of thin slits that are 3.4 × 10-5 m apart. At what angle away from the
Scrat [10]

Answer: 1.8\°

Explanation:

The diffraction angles \theta_{n} when we have a slit divided into n parts are obtained by the following equation:

dsin\theta_{n}=n\lambda (1)

Where:

d=3.4(10)^{-5}m is the width of the slit

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Now, the second-order diffraction angle is given when n=2, hence equation (1) becomes:

dsin\theta_{2}=2\lambda (2)

Now we have to find the value of \theta_{2}:

sin\theta_{2}=\frac{2\lambda}{d} (3)

Then:

\theta_{2}=arcsin(\frac{2\lambda}{d})   (4)

\theta_{2}=arcsin(\frac{2(540(10)^{-9}m)}{3.4(10)^{-5}m})   (5)

Finally:

\theta_{2}=1.8\°   (6)

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