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An inductor is connected to a variable frequency AC source with a voltage amplitude of 100 V. The maximum current in the circuit is 7.5 A when the AC source frequency is 50 Hz. At what angular frequency of the AC source is the maximum current 2.5 A? Express your answer in units of rad/s.

In the circuit shown in the figure, a resistor with R=4200 Ω is connected to a sinusoidal AC source. A segment of the voltage-time graph is displayed (note that time extends to infinity). Calculate the total electrical energy (in joules, J) dissipated by the resistor over a time interval of 60 seconds.    

A circuit is shown in the figure. C = 2.4×10-5 F. The AC source has a root-mean-square voltage Vrms = 100 V. When the AC source frequency is 60 Hz, the room-mean-square current in the circuit has its maximum value of 5 A. If the frequency of the AC source is changed to 90 Hz, what is the root-mean-square current in the circuit (unit in amperes, A)? 

The CDC recommends that before entering a patient’s room, the nurse should do what?

Diffraction occurs when the scattered waves are

Who accompanies the anesthesia provider to PACU with the patient?

What situation will a patient denied discharge from hospital? 

When does the management of nausea and vomiting start?  

The postoperative plan only involves the patient and the provider. 

How many times must a medication be verified before given to the sterile field?