2. Your friend says that when he measured how much electricity was
provided by a battery, it was less than the potential energy in the battery.
He concluded that the transformation violated the Law of Conservation of
Energy. Do you agree? Explain, using the ideas of the Conservation of
Energy (answer in 3-4 sentences or a solid paragraph, or more).

Which type of circuit is becoming more common in residential electrical design and construction? a. hazardous-area circuit b. three-phase circuit c. 480-volt circuit d. communication circuit

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers