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Romashka-Z-Leto [24]

4 years ago

8

Some magnets have just one pole Truth or false ?

2 answers:

Aliun [14]4 years ago

7 0

False
Every magnet has two poles, a North pole, and another pole to counter that pole which would be a South pole. Magnetism is made through the pushing and pulling of magnetic electrons. A magnet can't be a magnet if opposites don't attract. Therefore, the statement made would be false.

leva [86]4 years ago

3 0

False

-A magnet can never have one pole, even a simple magnet was cut, each end would have an opposite south(-) or north(+) pull.
-This is the result of moving electrons

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denpristay [2]

Answer:

(a) $F_i=68.58\ N$

(b) $F_i=69.903\ N$

Explanation:

Given:

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radius of input piston, $r_i=6.3\times 10^{-3}\ m$

radius of output plunger, $r_o=0.125\ m$

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(a)

<u><em>Condition:</em></u><em>The bottom surfaces of piston and plunger at the same level.</em>

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$\frac{F_i}{A_i} =\frac{F_o}{A_o}$

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(b)

<u><em>Condition:</em></u><em>The bottom surface of the output plunger is 1.30 m above that of the input piston.</em>

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$h=1.3\ m$

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