phys0001_assignment03_ans

phys0001_assignment03_ans - 7.8x10 8 km. The angular size...

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Solutions of Assignment 3 Due date: November 27, 2009 1) a) Yes, the Sun will also induce tides on Earth. b) Yes, similar to the effect of the actual Sun and Moon on the day of full moon, the two hypothetical moons will also induce two bulges of water on the Earth's surface. 2) This is correct. On the day of full moon, the Moon is opposite to the Sun. We will be able to see the Moon roughly starting at sunset, which is around 6 pm. Please see the Moon phase figure in Chapter 7. 3) a) Ganymede. b) Its diameter is about 5300 km. Its distance from Jupiter's surface is about 106 km. Hence, the angular size is about 0.3° . c) The diameter of the Sun is about 1.4x10 6 km, its distance from Jupiter is about
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Unformatted text preview: 7.8x10 8 km. The angular size of the Sun is 0.1° . d) Because the angular size of the biggest satellite is larger than the angular size of the Sun, it is possible to see total solar eclipse on Jupiter. 4) When the Moon is in the umbra, small amount of light is refracted around the edge of the Earth by its atmosphere to the Moon. All lights from the Sun are scattered by the gas molecules in the atmosphere, but blue light is scattered more than the red light. Thus, mainly red light can travel through the atmosphere and reaches the Moon. 5) The five main satellites are Miranda, Ariel, Umbriel, Titania and Oberon. Ariel has the youngest surface. Titania is the largest....
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This note was uploaded on 10/14/2010 for the course BSC phy1001 taught by Professor Prof during the Spring '10 term at HKU.

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