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Ainat [17]
3 years ago
10

A wire that is cold has less resistance than a wire that is hot True False

Physics
1 answer:
Vladimir79 [104]3 years ago
8 0
True because cooler particles have less kinetic energy in them
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If you used 650 W of power lifting a 300 N weight in 2 seconds how high did you lift?
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4.33m

Explanation:

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work done = power × time =650 × 2 = 1300J

work done = force × distance

distance = work done/force

distance = 1300/300 = 4.33m

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putting the burner on a stand to keep it away from chemicals 
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If the strength of a magnetic field at B is three units the strength of the magnetic field at A is ____?
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If the strength of a magnetic field at B is three units the strength of the magnetic field at A, means that point B has three times more turns as compared to point A.

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Learn more about magnetic field here: brainly.com/question/14411049

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