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Intro to Energy | 15 mins | 0 completed | Learn |

Intro to Calculating Work | 36 mins | 0 completed | Learn |

Work By Gravity & Inclined Planes | 40 mins | 0 completed | Learn |

Work By Variable Forces (Springs) | 47 mins | 0 completed | Learn |

Net Work & Kinetic Energy | 39 mins | 0 completed | Learn |

More Work-Energy Problems | 39 mins | 0 completed | Learn |

Power | 20 mins | 0 completed | Learn |

Solution: A physics student spends part of her day walking between classes or for recreation, during which time she expends energy at an average rate of 280 W . The remainder of the day she is sitting in class,

A physics student spends part of her day walking between classes or for recreation, during which time she expends energy at an average rate of 280 W . The remainder of the day she is sitting in class, studying, or resting; during these activities, she expends energy at an average rate of 110 W .

If she expends a total of 1.4×10^{7} J of energy in a 24-hour day, how much of the day did she spend walking?

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