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...
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
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...