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Home Q & A Board Science-Related Homework Help Physics
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dasmus dasmus
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11 years ago
the car engine will require 6000  coulombs of charge. The double feature lasts 4 hours.
a)Will Sam be able to start the car after the movie?
   b)If not, when should he have left?
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#1
11 years ago
If poor Sam needs 6,000 coulombs to start his car, he has only 14,000 coulombs to spare. Since an amp is one coulomb per second, he can run the radio for about 14,000 seconds which turns out to be (14,000/60)= 233 and 1/3 minute. Sam needs to hit the road in 3 hours, 53 and 1/3 minutes.

He's going to miss the end of the movie.....
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