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GarryVolchara [31]
3 years ago
15

Which statements best characterize conductors? Check all that apply.

Physics
2 answers:
romanna [79]3 years ago
5 0
It would be the first one and the third one
lidiya [134]3 years ago
5 0

Answer:

Conductors allow electricity to easily move through them.  

Metal is an example of a conductor.  

Explanation:

Conductors are materials that have free electrons, so they allow electrical currents (which are made of electrons traveling) passing through them.

Let's analyze each statement separately:

- Conductors allow electricity to easily move through them.  --> TRUE: conductors allow electrical currents to pass through them.

- Glass is an example of a conductor.  --> FALSE: glass is an example of insulator (insulators are materials that do not allow the flow of current)

- Metal is an example of a conductor.   --> TRUE: metals are generally good conductors of electricity, since they have many free electrons.

- Conductors do not allow electricity to easily move through them.   --> FALSE: it's actually the opposite, conductors allow electricity to easily move through them.

- Conductors restrict the flow of thermal energy. --> FALSE: conductors are generally also good conductors of thermal energy, so they do not restrict the flow of thermal energy.

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Answer:

B

Explanation:

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Try this solution (if it is possible, check it in other sources):

1. for m_Tarzan=75kg., initial_height=4m., end_height=0 m. and g=10 N/kg. Energy is:

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2. The same value of Energy is applied for m_Tarzan+Jane=75+50=125 kg.:

E=\frac{m_{Tarzan+Jane}* Speed^2}{2}; \ => \ Speed=\sqrt{ \frac{2*E}{m_{Tarzan+Jane}}};

3. According to the formula of the Speed:

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Answer: 6.84 (m. per sec.)

5 0
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= 7.0m (2s . f)

Hence, maximum height is 8.5 m

hope this helps
7 0
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