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Pertanyaan

energi kinetic seekor nyamuk bermassa 0,75 mg yg sdg trbg dg kelajuan 40 m/s adalah

2 Jawaban

  • m = 0,75 mg = 75.10^-2 : 10^6 = 0,00000075

    Ek = ½.m.v²
    Ek = ½.0,00000075.40²
    Ek = ½.0,0012
    Ek = 0,0006
  • EK = 1/2 mv²
    = 1/2 (7,5 x 10^-7 kg)(4 x 10^1 m/s)² = 6 x 10^-4 J

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