Technician A says that with the engine off, most good batteries can provide about 25 amperes for 2 hours before discharging to the point where the engine will not start. Technician B says that most batteries can provide about 10 amperes for 30 minutes. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: A

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How much mechanical work is required to lift a 300-lb compressor 3 ft?

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