Janice's coworker should have worn gloves and protective clothing while staying out of the spray area when removing the manifold gauge. It is essential to ensure that the system is not pressurized to avoid refrigerant escaping and causing frostbite. Proper safety measures are vital in preventing accidents during this process. ;
The total charge delivered by the device is 450 coulombs over 30 seconds with a current of 15 A. This corresponds to approximately 2.81 × 10^21 electrons flowing through the device. Each electron carries a charge of about 1.6 × 10^-19 coulombs.
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