Answer:
Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone.
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Answer:
Explanation:
Given data
For Part (a) Speed
The speed v is given by
For Part (b) minimum coefficient of friction
To determine the friction of coefficient we know that friction force f is given by:
The first centripetal force Fc₁ is given by:
The second centripetal force Fc₂ is given by:
The additional friction force is given by:
Answer:
<u><em>370.114 meters.</em></u>
Explanation:
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A is the correct answer.
The less the mass of something, the faster the kinetic energy.
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