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anyanavicka [17]
3 years ago
14

3. Explain why one side of the single magnet attracted the metal surface, but repelled the stack of magnets

Physics
2 answers:
valina [46]3 years ago
7 0

Answer:

Explained

Explanation:

one side of the single magnet attracted the metal surface, but repelled the stack of magnets because  magnet's both poles  try to attract by inducing opposite pole on the metal surface,but the pole closer to the metal is able to induce more magnetic character .so, attractive force due to this is more strong as the distance is also less as compared to the other pole.

Sati [7]3 years ago
5 0

Explanation:

Magnets have the property where opposite poles attract each other and same poles repel each other. The single magnet in this case repels the stack of magnets which means that the poles of the single magnet and stack of magnet are same.

Metals are not permanent magnets. Temporary magnetism can be induced in metal by bringing a magnet close to it. The poles of the metal surface will be such that it is attracted by the magnet.

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3 years ago
A grandfather clock has a pendulum that consists of a thin brass disk of radius r = 13.62 cm and mass 1.199 kg that is attached
Feliz [49]

Answer:

Explanation:

Expression for time period of a pendulum is as follows

T = 2\pi\sqrt{\frac{l}{g} }

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g = 9.846

Substituting the values

1.583 = 2\pi\sqrt{\frac{l}{9.846} }

l = \frac{(1.583)^2\times9.846}{4\times(\frac{22}{7})^2 }

l = .6244 m

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8 0
3 years ago
A particle moves along the x axis so that its velocity at time t is given by v(t)=
vodomira [7]

Answer:

a = 0.7267 ,  acceleration is positive therefore the speed is increasing  

Explanation:

The definition of acceleration is

         a = dv / dt

they give us the function of speed

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remember that the angles are in radians

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the problem does not indicate the units, but to be correct they must be m/s²

We see that the acceleration is positive therefore the speed is increasing

6 0
3 years ago
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