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storchak [24]
4 years ago
10

Calculated in kilowatt hour , then in joule the energy consumed by a electrical dry towels of puissance 800 W.

Physics
1 answer:
Bad White [126]4 years ago
4 0

You haven't said how much time the device runs. 
The longer it runs, the more energy it dissipates.

Let's consider 1 hour of run time:

800 watts = 0.8 kilowatt
800 watts = 800 joules/sec

In 1 hour . . .

                  (0.8 kilowatt) x (1 hour) = 0.8 kilowatt-hour .

                  (800 joule/sec) x (1 hour) x (3600 sec/hour) = 2,880,000 joules

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A bicyclist accelerates from a stop to a speed of 12m/s in 3 seconds.what is her acceleration
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3 years ago
A small charged bead has a mass of 1.0 g. It is held in a uniform electric field of magnitude E = 200,000 N/C, directed upward.
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3 years ago
Two identical metal spheres a and b are connected by a plastic rod. both are initially neutral. 1.0×1012 electrons are added to
Ann [662]
The plastic rod is made of insulator (plastic), so it does not allow charges moving from one sphere to another. This means that all the electrons given to sphere A will remain on sphere A.

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8 0
3 years ago
Read 2 more answers
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