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sertanlavr [38]
3 years ago
12

Part C

Physics
1 answer:
7nadin3 [17]3 years ago
5 0

Answer:

yu counter the arguement by either walking out or confronting whats the problem then fixing that problem

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How many simple machines are in a wine opener? The kind with the bottle opener at the head and two "arms."
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It uses the corkscrew to anchor it to the cork and a lever to pull the cork out

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The zinc plate is coated with mercury ​
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Amalgamating is the coating of zinc plate with mercury.
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La intensidad de corriente que circula por un conductor es 2μA. ¿Que tiempo demoraran 5x1013 electrones en cruzar una determinad
VikaD [51]

Answer:

t = 4 seconds

Explanation:

The question is "The intensity of current flowing through a conductor is 2μA. How long will it take 5x1013 electrons to cross a certain cross section of the conductor? "

Current, I=2\ \mu A=2\times 10^{-6}\ A

No of electrons, n=5\times 10^{13}

We need to find how long will it take to given no of electrons to cross a certain cross section of the conductor.

Electric current,

I=\dfrac{q}{t}

t is time

Also, q = ne

I=\dfrac{ne}{t}\\\\t=\dfrac{ne}{I}\\\\t=\dfrac{5\times 10^{13}\times 1.6\times 10^{-19}}{2\times 10^{-6}}\\\\t=4\ s

So, it will take 4 seconds.

5 0
3 years ago
Can anyone please explain this point with an example. I have presentation tomorrow.
r-ruslan [8.4K]

Explanation:

Efficiency is a way of describing the amount of useful ​output​ a process or machine can generate as a percentage of the ​input​ required to make it go. In other words, it compares how much energy is used to do work versus how much is lost or wasted to the environment. The more efficient the machine, the less energy wasted.

For example, if a heat engine is able to turn 75 percent of the fuel it receives into motion, while 25 percent is lost as heat in the process, it would be 75 percent efficient. Out of the original 100 percent of the fuel, 75 percent was output as useful work.  

the equation:

energy efficiency =useful output energy/total input energy

8 0
2 years ago
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Harlamova29_29 [7]

Answer:

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Explanation:

Third's Newton Law states that:

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In this problem, object A is the golf ball while object B is the ground, so we can say that:

- the golf ball exerts a force on the ground

- the ground exerts an equal and opposite force on the golf ball

8 0
3 years ago
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