Question

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Answer 1

Resposta:

d) 0,24 (J)

Explicação:

Wab = q . U

Wab = 2 . 10^-3 . (60 - 0)

Wab = 2.10^-3 . 60

Wab = 120 . 10^-3

Wbc = q . U

Wbc = 2 . 10^-3 . (0 - (-60) )

Wbc = 2.10^-3 . 60

Wbc = 120 . 10^-3

Wad =  Wab + Wbc

Wad = 120 . 10^-3 + 120.10^-3

Wad = 240 . 10^-3

Wad = 24.10^-2

Wad = 24/100

Wab = 0,24 (J)