Recent content by ian 610

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    Time it takes for water to boil

    Homework Statement a 1200 watt heater is used for raising the temperature of 1 liter of water to boiling point. how long will itake for the water to boil of the initial temperature of the water is 20 degrees celsius? ( 1 cal = 4.19 joules) Homework Equations Q = mass * specific heat...
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    What is the EMF of a coil with a changing magnetic flux?

    thanks so much ehild.. helped me much.. ;p
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    How Much Energy is Needed for a Carnot Refrigerator to Convert Water to Ice?

    i would've done that if i had even any idea how to setup the problem.. so basically I am clueless how to do this one..
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    What is the EMF of a coil with a changing magnetic flux?

    Homework Statement what is the emf if the magnetic flux through a coil at 50 turns is reduced from 0.5 weber to 0 weber in 0.2 seconds? Homework Equations [b]3. The Attempt at a Solution : dont even know how to get started with this problem
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    How Much Energy is Needed for a Carnot Refrigerator to Convert Water to Ice?

    Homework Statement can you please help me solve this problem? A carnot refrigerator takes heat from water @ 0 degrees celsius and rejects heat to a room at 27 degrees celsius. If 50 kg of water @ 0 degrees celsius is converted to ice @ 0 degrees celsius, how much energy must be supplied...