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posted by  zara1 on 7/3/2008 5:03:58 PM  |  status: Live  

physics algebra base

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The per capita power consumption in the United States is around 10 kJ each and every second. At what speed would you have to push a car exerting a force of 0.8 kN on it all year, day in and day out, to be equivalent to your share?
 m/s 
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posted by zsm28 on 7/3/2008 5:18:06 PM  |  status: Live
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zara1's comment:
"thank you"
Response Details:
power = force * speed
speed = 10 kJ/0.8 kN = 12.5 m/s
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