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m_a_m_a [10]
4 years ago
9

Juan makes an adjustment to an electromagnet that causes the electromagnet to lose some of its strength. What did Juan most like

ly do?
A He reduced the number of loops in the wire.
B He increased the number of loops in the wire.
C He reduced the length of the wire.
D He increased the length of the wire.
Physics
2 answers:
bonufazy [111]4 years ago
7 0

Answer:

its A

Explanation:

vampirchik [111]4 years ago
5 0
A: He reduced the number of loops in the wire.

Explanation: The fewer coils of solenoid there are around the magnet, the weaker the electromagnet is. FYI: The solenoid <em>is</em> the wire in the electromagnet.
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A new record for running the stairs of the Empire State Building were set on February 4, 2003. The 86 flights, with a total of 1
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Answer:

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Explanation:

Given:

Number of steps, n = 1576

height of each step, h = 0.20 m

Total height achieved, H = nh = 1576 × 0.20 = 315.2 m

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Total time taken, t = 9 minutes 33 seconds = (9 × 60) + 33 = 573 seconds

Now, the potential energy gained by the runner,

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also,

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thus,

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