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Lelu [443]
3 years ago
14

According to the law of conservation of matter,the number of ______ is not changed by a chemical reaction

Physics
2 answers:
miv72 [106K]3 years ago
8 0

No, actually the answer is atoms.

abruzzese [7]3 years ago
6 0
The answer is mass. I have to comment more than 20 characters.
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An air-filled parallel-plate capacitor has plates of area 2.90 cm2 separated by 2.50 mm. The capacitor is connected to a(n) 18.0
Murrr4er [49]

Complete question:

An air-filled parallel-plate capacitor has plates of area 2.90 cm2 separated by 2.50 mm. The capacitor is connected to a(n) 18.0 V battery. Find the value of its capacitance.

Answer:

The value of its capacitance is 1.027 x 10⁻¹² F

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area of the plate, A = 2.9 cm² = 2.9 x 10⁻⁴ m²

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The value of its capacitance is calculated as;

C = \frac{k\epsilon_0A}{d} \\\\C = \frac{(1)(8.85\times 10^{-12})(2.9 \times 10^{-4})}{2.5 \times 10^{-3}} \\\\C = 1.027 \times 10^{-12} \ F

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