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grin007 [14]
3 years ago
15

Which value is equivalent to 178 centimeters?

Physics
1 answer:
julia-pushkina [17]3 years ago
8 0

Answer:

5.8399

Explanation

work:

176cm

1cm=0.39 in

1cm=0.39x178=178cm=70.07in

70.0787/12=5.8399

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3 years ago
A capacitor consists of two square plates, 8.7 cm on a side, separated by a 2.0 mm air gap. How much energy would be stored in t
slavikrds [6]

Answer:

122.84 J

Explanation:

Since plate is square, area, A is given by (8.7/100)^{2}=0.007569m^{2}

The distance between plates, d, is given in the question as 2mm=0.002m

Charge on plate, Q, as given in the question is 240 \mu c

Assuming mica dielectric constant, k of 7

Capacitance, C is given by

C=\frac {k\epsilon_{o}A}{d}=\frac {(7)(8.85*10^{-12})(0.007569)}{0.002}=2.34*10*^{-10}F

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E=\frac {Q^{2}}{2C}=\frac {(240*10^{-6})^{2}}{2*(2.34*10^{-10})}=122.84J

Therefore, the stored energy is 122.84 J

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Proof of conservation of energy
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Explanation:

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Read 2 more answers
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