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A hair curling iron uses 13 watts of power. how long must it operate to do 1,040 joules of work?
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A hair curling iron uses 13 watts of power. how long must it operate to do 1,040 joules of work?
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Apr 8, 2017
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A hair curling iron uses 13 watts of power. how long must it operate to do 1,040 joules of work?
Physics
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Hawkbee
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Power of Watt = Energy in Joules / Time period in seconds
13 watts = 1040 joules / time in seconds
time in seconds = 1040 joules / 13 watts
time in seconds = 80 seconds
It must operate for 80 seconds to do 1,040 joules of work.
Raddykrish
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Apr 10, 2017
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Knowing the solution to the 4-watt night light, you ought to be able to do this one on your own. But 5 points is 5 points, so here we go:
1 watt = 1 joule/second .
(1,040 joule) / (13 joule/second)
= (1,040 / 13) (second)
=
80 seconds .
Hong Tang
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Apr 12, 2017
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Hong Tang
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