A step-down transformer has 3000 turns on its primary coil and 20 turns on its secondary coil. The primary circuit is supplied with an effective AC voltage of 325 V. a. What is the voltage in the secondary circuit?

b. If the current in the primary circuit is 1.25 A, what power is drawn by the primary circuit?

c. Assuming the transformer is perfectly efficient, what power is supplied to the secondary circuit?

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?