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keke6361
12.07.2019 •
Mathematics
Avery large conducting plate has a surface charge density of 10^-3 c/m^2. what is the energy density of the field produced by this charge distribution?
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Ответ:
question 1: 2x - y = 26
Step-by-step explanation:
Plug in 18 for x and 10 for y.
2x − y = 26 –> 2(18) - 10 = 26 —> 36 - 10 = 26. This is true! 36-10 is 26!
x + y = 18 —> 18 + 10 = 18. This is false. 18+10 is 28, not 18.
2x − 2y = 36 —> 2(18) - 2(10) = 36 —> 36 - 20 = 36. This is false!
x − y = −28 —> 18 - 10 = -28. This is false! The only true equation was 2x − y = 26. So that is your first answer.