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Solve the all parts of following question given below:
Question: How much work is done (by a battery, generator, or some other source of potential difference) in moving Avogadro's number of electrons from an initial point where the electric potential is 9.40 V to a point where the electric potential is -7.30 V? (The potential in each case is measured relative to a common reference point.)
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A roof-top solar water heater collects 50% of the 200 W/m^2 provided by the sun, using absorbers with a total area of 30m^2. If water enters the system at 15(C), how many hours will be required to warm 150kg of water to 60(C) using this heater? (Y..
A bolt is dropped from a bridge under construction, falling 67 m to the valley below the bridge. (a) In how much time does it pass through the last 22% of its fall? What is its speed (b) when it begins that last 22% of its fall and (c) when it reache..
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