Physics
Physics, 22.09.2019 10:30, seasmarie75

A150 w driveway light produces 9.3 × 104
j of light energy
over a 4.0 h period. if the light uses 2.06 × 106
j of energy in
the 4.0 h, then what is its efficiency? show all your work.

answer
Answers: 1

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A150 w driveway light produces 9.3 × 104
j of light energy
over a 4.0 h period. if the l...

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