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Nastasia [14]
3 years ago
13

Loops spaced further apart create a stronger electromagnet. True or False

Physics
1 answer:
Andrew [12]3 years ago
6 0

Answer:

False

Explanation:

Electromagnetic strength is inversely proportional to separation distance

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emmasim [6.3K]

Answer:

m/s

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mph

Explanation:

speed is measured with distance which does in velocity too that is why I chose this answer

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2 years ago
How does friction affect work
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Explanation:

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A ball is projected into the air with 100 j of kinetic energy which is transformed to gravitational potential energy at the top
raketka [301]
<span>when it returns to its original level after encountering air resistance, its kinetic energy is decreased. 
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The mechanical energy of the ball as it starts the motion is:
</span>E=K = 100 J
<span>where K is the kinetic energy, and where there is no potential energy since we use the initial height of the ball as reference level.
If there is no air resistance, this total energy is conserved, therefore when the ball returns to its original height, the kinetic energy will still be 100 J. However, because of the presence of the air resistance, the total mechanical energy is not conserved, and part of the total energy of the ball has been dissipated through the air. Therefore, when the ball returns to its original level, the kinetic energy will be less than 100 J.</span>
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What is the equation for frequency?
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D. Number of cycles/ unit of time
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