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Dvinal [7]
2 years ago
6

Which statement best explains the movement of electric current from the clouds to the ground during a lightning storm? .

Physics
2 answers:
SVEN [57.7K]2 years ago
5 0

Answer:

Correct Answer is option C

Explanation:

Option A cannot be correct because if both earth and clouds are negatively charged then they will repel each other and electron cannot flow through it because electron is negatively charged and it will get attracted towards positively charged terminal. Hence electric current will not flow between them.

Option B

cannot be correct because if both earth and clouds are positively charged then they will repel each other and electron cannot flow through it.Hence electric current will not flow between them.

Option C

It is correct option because flow of current means flow of electron. so electron which are negatively charged particle will move from cloud to positively charged ground.

Option D

If clouds are neutral then electron will not be there and hence current will not flow.

olga2289 [7]2 years ago
3 0
"The <span>ground is positively charged and the clouds are negatively charged " is the statement among the statements given in the question that </span><span>best explains the movement of electric current from the clouds to the ground during a lightning storm. The correct option among all the options that are given in the question is the third option or option "C". </span>
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Two cars, one in front of the other, are traveling down the highway at 25 m/s. the car behind sounds its horn, which has a frequ
netineya [11]
<span>You are given two cars, one in front of the other, that are traveling down the highway at 25 m/s. You are also given a frequency of 500 Hz of the car travelling behind it. You are asked what is the frequency heard by the driver of the lead car. This problem can be solved using the Doppler effect

sound frequency heard by the lead car = [(speed of sound + lead car velocity)/( speed of sound + behind car velocity)] * (sound of frequency of the behind car)
</span>sound frequency heard by the lead car = [(340 m/s + 25 m/s)/(340 m/s - 25 m/s)] * (500 Hz)
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7 0
3 years ago
when electrical energy is used what type of energy is also produced and considered to be waste energy?​
Dima020 [189]

Answer:

<em>Thermal energy</em>

Explanation:

<u>Electrical Energy </u>

The electrical energy has been found to be an excellent resource to power our modern lifestyle. It can be produced in several ways including hydroelectrical plants, thermal plants, nuclear plants, solar panels, among many others. Each one of them converts different types of energy into electrical energy.

When converting to electrical energy, some equipment is needed, like generators, transformers, cables, circuit breakers, and every kind of devices with specific functions to have a good and safe electrical service. Each device has an internal resistance that opposes the flow of current. The resistances produce thermal energy as a result of current flowing through them. It's not possible to avoid this waste of energy, electrical engineers do their best to use better materials and configurations to reduce the thermal waste to a minimum.

8 0
3 years ago
A bicycle going 10 m/s on a flat road demonstrates __________ energy.
vampirchik [111]
Then it demonstrate KINETIC ENERGY.
5 0
3 years ago
If the train can slow down at a rate of 0.625 m/s2, how long, in seconds, does it take to come to a stop from this velocity?
qwelly [4]

Answer:

66.28 s

Explanation:

Step 1:

Acceleration,a=0.065m/s^2

Time,t=9.75 min=9.75\times 60=585s

1 min=60 s

Initial velocity,u=3.4m/s

We have to find the final velocity of train.

We know that

v=u+at

Substitute the values

v=3.4+0.065(585)=41.425m/s

Step 2:

Now, initial velocity,u=41.425m/s

Deceleration,a=-0.625m/s^2

Because the train velocity decreases

Final velocity, v=0

Again, substitute the values in the above formula

0-41.425=-0.625t

-41.425=-0.625t

t=\frac{-41.425}{-0.625}

t=66.28s

Hence, the train takes 66.28 s to come to stop from velocity 41.425m/s.

6 0
3 years ago
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Explanation:

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