Intensity of a light is 24 kW/m². If an area of 2.1 m² is exposed for 3.2 s, how much energy is transferred to the area?
Added by Sarah H.
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Energy E transferred = intensity I × area A × time t. Given I = 24 kW/m², A = 2.1 m², t = 3.2 s. Show more…
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