Calculate the maximum possible efficiency of a power plant that burns natural gas at a temperature of 600k, with low temperature surroundings at 300k. how much more efficient would the plant be if it were built in the arctic where the low temperature reservoir is at 250k? why don't we build all power plants in the arctic?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

Acar travels 40m in 8 seconds find the car speed