High voltage power lines transmit electrical energy at 240,000 v. before the current reaches your home, the voltage is decreased to the standard voltage for a wall socket. if a single step-down transformer is used, what is the ratio of turns in the primary coil to the secondary coil?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

The solid that is formed and usually sinks to the bottom of a solution is the

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)