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Q1. A combined cycle gas turbine power plant can run at 50 percent efficiency. Assume such a plant delivers 1 GW of power, how several cubic feet of natural gas would be needed to run the plant for a year?

Q2. The potential difference between two parallel plates 595 V. An α particle with mass of 6.5 × 10-27 kg and charge of 3.2 × 10-19 C is released from rest near the positive plate. What is the kinetic energy of α particle while it reaches the other plate? The distance between the plates is 33 cm.

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