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A garage door opener has a power rating of 350 watts. If the door is in operation for 30 seconds, how many joules of energy are used? (Hint: Remember that 1 watt = 1 joule/sec) 350 J 11.7 J 10,500 J 0.
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Jan 28, 2017
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A garage door opener has a power rating of 350 watts.
If the door is in operation for 30 seconds, how many joules of energy are used? (Hint: Remember that 1 watt = 1 joule/sec) 350 J 11.7 J 10,500 J 0.086 J
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Vpekar
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Answer:
10,500 J
Step-by-step explanation:
Andreas Gassmann
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Jan 29, 2017
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We Know, Power = Energy/Time
Substitute the known value. which is P = 350 watt, & T = 30 sec
350 = E/30
E = 350 * 30
E = 1050 Joules.
So, your answer is 1050 Joules.
Hope this helps! Keep studying!
Khopa
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Feb 3, 2017
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