21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 5, Problem 14QP
To determine

Option which shows that the planet is in equilibrium.

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Our Sun shines bright with a luminosity of 3.828 x 1026 Watt. Her energy is responsible for manyprocesses 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) To how many litres of heating oil (energy density: 37.3 x 106J/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?
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QUESTION 1 What physical phenomenon predominantly contributes to the magentic field of the earth?   a. Charged particles from the solar wind that enter the earth's atmosphere   b.  Ion convection in the molten liquid shell that surrounds the earth's solid inner core   c. The ionization of metals in the earth's crust   d. The total amount of ferromagnetic iron, cobalt, and nickel that is present in the earth's crust   e. Ionization in the earth's atmosphere
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