Electromagnetic technology becomes more advanced to fill ever more complex roles. Which of these is an application of electromagnets?
A. car brake systems

B. refrigerator coils

C. speaker and microphone
technology

D. all of these

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.

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)