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  3. a new type of 38.0 w lamp is designed to produce t

A new type of 38.0 W lamp is designed to produce the same illumination as a...

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Physics

A new type of 38.0 W lamp is designed to produce the sameillumination as a conventional 53.0 W lamp. How much energy doesthis lamp save during 370.0 h of use? Answer in units of J.

If electrical energy costs $0.080/kW·h, how much money is savedin 370.0 h? Answer in units of $.

Answer & Explanation Solved by verified expert
4.3 Ratings (566 Votes)
Time period T 370 hours 370 x 3600 sec 1332 x106 secPower usage of the new lamp P1 38 W 0038kWPower usage of the conventional lamp P2 53 W 0053 kWTo find the energy usage in Joules we will use the power inwatts and the    See Answer
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