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vesna_86 [32]
2 years ago
5

Two parallel plates that are initially uncharged are separated by 1.2 mm. What charge must be transferred from one plate to the

other if 11.0 kJ of energy is to be stored in the plates? The area of each plate is 19.0 mm2.
Physics
1 answer:
Gnoma [55]2 years ago
4 0

Answer: 55.52 *10^-6 C= 55.52 μC

Explanation: In order to solve this question we have to take into account the following expressions:

potential energy stired in a capacitor is given by:

U=Q^2/(2*C)  where Q and C are the charge and capacitance of the capacitor.

then we have:

Q^2= 2*C*U=

C=εo*A/d where A and d are the area and separation of the parallel plates capacitor

Q^2=2*εo*A*U/d=2*8.85*10^-12*1.9*10^-5*11*10^3/(1.2*10^-3)=

=55.52 *10^-6C

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nataly862011 [7]

Answer:

s = 3 m

Explanation:

Let t be the time the accelerating car starts.

Let's assume the vehicles are point masses so that "passing" takes no time.

the position of the constant velocity and accelerating vehicles are

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they pass when their distance is the same

½(20)(t)² = 40(t + 2)

10t² = 40t + 80

0 = 10t² - 40t - 80

0 = t² - 4t - 8

t = (4±√(4² - 4(1)(-8))) / 2(1)

t = (4± 6.928) / 2  ignore the negative time as it has not occurred yet.

t = 5.464 s

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300 cm when rounded to the single significant digit of the question numerals.

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3 years ago
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Svetllana [295]

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non linear square relationship

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Answer:

Explanation:

attached is the solution

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Answer:

D

Explanation:

D) Evolution proceeds in the direction desired by members of a generation is not the modern theory of evolution.

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Answer:

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Explanation:

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