Temperature of Earth Our Sun shines bright with a luminosity of 3.828 x 10^26 Watt. Her energy is responsible for many processes and the habitable temperatures on the Earth that make our life possible. (a) Calculate the amount of energy arriving on the Earth in a single day. (b) How many litres of heating oil (energy density: 37.3 x 10^6 J/litre) is this equivalent? (c) The Earth reflects 30% of this energy: Determine the temperature on Earth's surface. (d) What other factors should be considered to get an even more precise temperature estimate? Note: The Earth's radius is 6370 km, the Sun's radius is 696 x 10^3 km; 1 AU is 1.495 x 10^8 km.
Temperature of Earth Our Sun shines bright with a luminosity of 3.828 x 10^26 Watt. Her energy is responsible for many processes and the habitable temperatures on the Earth that make our life possible. (a) Calculate the amount of energy arriving on the Earth in a single day. (b) How many litres of heating oil (energy density: 37.3 x 10^6 J/litre) is this equivalent? (c) The Earth reflects 30% of this energy: Determine the temperature on Earth's surface. (d) What other factors should be considered to get an even more precise temperature estimate? Note: The Earth's radius is 6370 km, the Sun's radius is 696 x 10^3 km; 1 AU is 1.495 x 10^8 km.
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Problem B.1: Temperature of Earth
Our Sun shines bright with a luminosity of 3.828 x 10^26 Watt. Her energy is responsible for many processes and the habitable temperatures on the Earth that make our life possible.
(a) Calculate the amount of energy arriving on the Earth in a single day.
(b) How many litres of heating oil (energy density: 37.3 x 10^6 J/litre) is this equivalent?
(c) The Earth reflects 30% of this energy: Determine the temperature on Earth's surface.
(d) What other factors should be considered to get an even more precise temperature estimate?
Note: The Earth's radius is 6370 km, the Sun's radius is 696 x 10^3 km; 1 AU is 1.495 x 10^8 km.
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