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mihalych1998 [28]
3 years ago
13

Will give brainliest to right answer!

Physics
1 answer:
viva [34]3 years ago
8 0
The correct answer is D.
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A paper filled capacitor is charged to a potential difference of 2.1 V and then disconnected from the charging circuit. The diel
Goryan [66]

Answer:

Part a)

V' = 7.77 Volts

Part b)

k' = 6.27

Explanation:

As we know that capacitor plate is connected across 2.1 V and after charging it is disconnected from the battery

So here we can say that charge on the plates will remain conserved

So we will have

Q = kC(2.1)

now dielectric is removed between the plates of capacitor

so new potential difference between the plates

V' = \frac{Q}{C'}

V' = \frac{kC(2.1)}{C}

V' = 3.7 \times 2.1

V' = 7.77 Volts

Part b)

Now the capacitor plates are again isolated and unknown dielectric is inserted between the plates

So again charge is same so potential difference is given as

V" = \frac{Q}{k'C}

0.59 V = \frac{kCV}{k'C}

0.59 = \frac{3.7}{k'}

k' = 6.27

5 0
3 years ago
What precautions should be taken on board a vessel during a lightning storm?
dusya [7]

<span>The precautions which should be taken on board a vessel during a lightning storm are:</span>

<span>(i)  </span>All electrical equipments should be unplugged.

<span>(ii) </span>Keep yourself away from all metal parts such as engines, metal tanks, stoves etc.

<span>(iii) </span><span>Stay inside the boat. </span>

7 0
3 years ago
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How can gravitational energy play an important part of my life
m_a_m_a [10]

Answer:

Explanation:

Well, lets say you park your car on the top of a hill, gravitational energy prevents it from the car falling back. Or a snow pack, aka before a potential avalanche. Though gravity cannot keep it safe forever, gravitational energy keeps it from crashing asap. In this case, it gives you time to escape. Altogether, gravitational force keeps the earth in it's atmosphere.

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3 years ago
*NEED ANSWER QUICKLY!*
umka21 [38]
You would have to put the number together
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2 years ago
Which of the following is a non renewable resource?
Karo-lina-s [1.5K]
Carbon isn’t because all the others on the list are naturally made apart from carbon which is man made because of all the pollution . X
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3 years ago
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