A student finds some information about energy-saving light bulbs.
A 30W light bulb uses 600J o...
Physics, 09.04.2020 15:56 reesespowerade
A student finds some information about energy-saving light bulbs.
A 30W light bulb uses 600J of electrical energy in a certain period of time. In that time, it produces 450 J of light energy. The rest of the energy is wasted.
4.1 Calculate the energy wasted by the light bulb in this period of time.
Answers: 3
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