mrballard1 mrballard1
  • 14-01-2020
  • Biology
contestada

How much energy, in kJ does a 75 watt light bulb use when it is on for 25 minutes

Respuesta :

faizanshaukat89 faizanshaukat89
  • 01-02-2020

Answer:

112.5 KJ

Explanation:

Energy = Power x Time

Time = 25 minutes

         = 25 x 60 sec = 1500 sec

Power = 75 watt

Energy = 75 x 1500

                112,500 Joules

Energy in KJ = 112,500/1000

                     = 112.5 KJ

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