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vesna_86 [32]
3 years ago
10

Explain briefly why metals are good conductors of electric current

Physics
2 answers:
Mice21 [21]3 years ago
7 0
The free electrons in metals can move through the metal, all while receiving and losing electrons, allowing metals to conduct electricity. Example: copper is a great conductor of electric current.
harina [27]3 years ago
7 0
Hello!

Just briefly, Metals are good conductors of electricity because of electrons moving freely in metals and metals like to give up electrons making them a great conductor of electricity.

Hope this helps! Thank you!!
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A force of 85 N is used to push a box along the floor a distance of 15 m. How much work was done?
denpristay [2]

Answer:

1275J

Explanation:

Given parameters:

Force on box  = 85N

Distance moved  = 15m

Unknown:

Work done  = ?

Solution:

Work done is the amount of force applied on a body to move it through a specific distance.

 Work done  = Force x distance

Now insert the parameters and solve;

 Work done = 85 x 15  = 1275J

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3 years ago
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What is the only bone of the skull that moves?
Darina [25.2K]

Answer:

Mandible.

Explanation:

The mandible in the bone that allows you to open and close your mouth, otherwise known ad the jawbone.

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3 years ago
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When a parachutist jumps from an airplane, he eventually reaches a constant speed, called the terminal speed. Once he has reache
Masteriza [31]

Answer:

b) True.    the force of air drag on him is equal to his weight.

Explanation:

Let us propose the solution of the problem in order to analyze the given statements.

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Where the friction force has some form of type.

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Let's replace

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We can see that the friction force increases as the speed increases

At the equilibrium point

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For low speeds the quadratic depended is not important, so we can reduce the equation to

     G v = mg

     v = mg / G

This is the terminal speed.

Now let's analyze the claims

a) False is g between the friction force constant

b) True.

c) False. It is equal to the weight

d) False. In the terminal speed the acceleration is zero

e) False. The friction force is equal to the weight

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3 years ago
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Oh my lord lol I was do ready to help then I saw numbers
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3 years ago
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