Answer:
Step-by-step explanation:
Estimating the average daily energy one person uses in a round-trip from Phoenix to London to Phoenix involves several factors, such as the distance, the mode of transportation, and the activities during the trip.
Assuming that the mode of transportation is air travel and the distance traveled is approximately 10,000 miles (16,000 km) one way, the total distance covered in a round trip would be about 20,000 miles (32,000 km). The energy used during air travel includes not only the energy needed to move the aircraft, but also the energy required for airport operations, security screening, and ground transportation.
According to a report by the International Air Transport Association (IATA), the average energy consumption per passenger on a long-haul flight is about 5,400 kilowatt-hours (kWh) or 19.4 million joules (MJ). This figure accounts for both the energy used during flight and on the ground. Assuming a round-trip flight from Phoenix to London to Phoenix, the average daily energy consumption per person would be:
Total energy consumption = 2 * 19.4 million joules/person = 38.8 million joules/person
Average daily energy consumption per person = Total energy consumption / 14 days (assuming a two-week trip) = 2.77 million joules/person/day
Therefore, the estimated average daily energy one person uses in a round-trip from Phoenix to London to Phoenix is approximately 2.77 million joules/person/day.